What is a PRP ?
A PRP is a probable prime number, a number that nobody knows how to prove
or disprove its primality.
Here are some criterions that can be used to recognize these numbers
:
- N does not have any prime factor up to 2^32.
- N cannot be trivially written into a product.
- Take 3 square-free consecutive bases such that (b1/N)=(b2/N)=(b3/N)= -1. N
should be such that b1^((N-1)/2)=b2^((N-1)/2)=b3^((N-1)/2)= -1 (mod N).
- Take a prime base such that (b/N)= -1 and b<>b1<>b2<>b3.
N should pass the strong test in base b.
- or more (if someone has got an idea) !!!
Submit your PRPs
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Rank |
Probable prime |
Digits (> 50000) |
Who ? |
When ? |
8757 | 35^65917-7092 | 101781 | Enzo Doria | 03/2013 |
8751 | 2^338109-7261 | 101781 | Stefano Morozzi | 03/2022 |
8752 | 2^338109-131961 | 101781 | Stefano Morozzi | 03/2022 |
8753 | 2^338108+39585 | 101781 | Stefano Morozzi | 05/2022 |
8754 | 2^338109+38147 | 101781 | Stefano Morozzi | 05/2022 |
8755 | 2^338108+17301 | 101781 | Stefano Morozzi | 09/2022 |
8756 | 2^338108-65859 | 101781 | Stefano Morozzi | 01/2023 |
8758 | 2^338105+79599 | 101780 | Stefano Morozzi | 01/2022 |
8759 | 2^338103-180675 | 101780 | Stefano Morozzi | 02/2022 |
8760 | 2^338103+19499 | 101780 | Stefano Morozzi | 09/2022 |
8761 | 2^338103-165319 | 101780 | Stefano Morozzi | 01/2023 |
8762 | 2^338100-100389 | 101779 | Stefano Morozzi | 12/2021 |
8763 | 2^338100+27595 | 101779 | Stefano Morozzi | 12/2021 |
8764 | 2^338101+101139 | 101779 | Stefano Morozzi | 12/2021 |
8765 | 2^338101+134985 | 101779 | Stefano Morozzi | 03/2022 |
8766 | 2^338102+186135 | 101779 | Stefano Morozzi | 03/2022 |
8767 | 2^338100+36885 | 101779 | Stefano Morozzi | 04/2022 |
8768 | 2^338102-8151 | 101779 | Stefano Morozzi | 04/2022 |
8769 | 2^338100+90637 | 101779 | Stefano Morozzi | 06/2022 |
8770 | 2^338101+68505 | 101779 | Stefano Morozzi | 09/2022 |
8771 | 2^338100-42867 | 101779 | Stefano Morozzi | 02/2023 |
8772 | 2^338097+100229 | 101778 | Stefano Morozzi | 11/2021 |
8773 | 2^338097-25695 | 101778 | Stefano Morozzi | 12/2021 |
8774 | 2^338098-110043 | 101778 | Stefano Morozzi | 06/2022 |
8775 | 2^338099-191389 | 101778 | Stefano Morozzi | 01/2023 |
8776 | 2^338093-128403 | 101777 | Stefano Morozzi | 01/2022 |
8777 | 2^338093+33051 | 101777 | Stefano Morozzi | 02/2022 |
8778 | 2^338094+135555 | 101777 | Stefano Morozzi | 03/2022 |
8779 | 2^338095-32395 | 101777 | Stefano Morozzi | 03/2022 |
8780 | 2^338090-175353 | 101776 | Stefano Morozzi | 12/2021 |
8781 | 2^338090+33277 | 101776 | Stefano Morozzi | 02/2022 |
8782 | 2^338091-105601 | 101776 | Stefano Morozzi | 02/2022 |
8783 | 2^338091-32127 | 101776 | Stefano Morozzi | 03/2022 |
8784 | 2^338092+12873 | 101776 | Stefano Morozzi | 04/2022 |
8785 | 2^338091-58485 | 101776 | Stefano Morozzi | 04/2022 |
8786 | 2^338086+177643 | 101775 | Stefano Morozzi | 12/2021 |
8787 | 2^338089+82905 | 101775 | Stefano Morozzi | 02/2022 |
8788 | 2^338088+87565 | 101775 | Stefano Morozzi | 04/2022 |
8789 | 2^338088-166205 | 101775 | Stefano Morozzi | 01/2023 |
8790 | 2^338089-140053 | 101775 | Stefano Morozzi | 01/2023 |
8791 | 2^338087+124935 | 101775 | Stefano Morozzi | 02/2023 |
8792 | 2^338085-3301 | 101774 | Stefano Morozzi | 01/2022 |
8793 | 2^338084+108691 | 101774 | Stefano Morozzi | 03/2022 |
8794 | 2^338083+164369 | 101774 | Stefano Morozzi | 05/2022 |
8795 | 2^338080+107521 | 101773 | Stefano Morozzi | 02/2022 |
8796 | 2^338080-156917 | 101773 | Stefano Morozzi | 03/2022 |
8797 | 2^338081+199775 | 101773 | Stefano Morozzi | 02/2023 |
8798 | 2^338076+62311 | 101772 | Stefano Morozzi | 04/2022 |
8799 | 2^338079+161745 | 101772 | Stefano Morozzi | 04/2022 |
8800 | 2^338078-60075 | 101772 | Stefano Morozzi | 06/2022 |
8801 | 2^338079+167079 | 101772 | Stefano Morozzi | 09/2022 |
8802 | 2^338076+122535 | 101772 | Stefano Morozzi | 11/2022 |
8803 | 2^338077+95619 | 101772 | Stefano Morozzi | 11/2022 |
8804 | 2^338078+20539 | 101772 | Stefano Morozzi | 11/2022 |
8805 | 2^338076-36813 | 101772 | Stefano Morozzi | 12/2022 |
8806 | 2^338078-64911 | 101772 | Stefano Morozzi | 01/2023 |
8807 | 2^338073-77971 | 101771 | Stefano Morozzi | 01/2022 |
8808 | 2^338074+55579 | 101771 | Stefano Morozzi | 01/2022 |
8809 | 2^338073-81813 | 101771 | Stefano Morozzi | 03/2022 |
8810 | 2^338073+138645 | 101771 | Stefano Morozzi | 05/2022 |
8811 | 2^338075+148043 | 101771 | Stefano Morozzi | 11/2022 |
8812 | 2^338070-152607 | 101770 | Stefano Morozzi | 01/2022 |
8813 | 2^338070+138787 | 101770 | Stefano Morozzi | 05/2022 |
8814 | 2^338071+165249 | 101770 | Stefano Morozzi | 06/2022 |
8815 | 2^338070+70359 | 101770 | Stefano Morozzi | 11/2022 |
8816 | 2^338071+98573 | 101770 | Stefano Morozzi | 11/2022 |
8817 | 2^338069+79365 | 101769 | Stefano Morozzi | 01/2022 |
8818 | 2^338069+107571 | 101769 | Stefano Morozzi | 02/2022 |
8819 | 2^338068+73035 | 101769 | Stefano Morozzi | 11/2022 |
8820 | 2^338064+100087 | 101768 | Stefano Morozzi | 11/2021 |
8821 | 2^338064-83793 | 101768 | Stefano Morozzi | 04/2022 |
8822 | 2^338064+193701 | 101768 | Stefano Morozzi | 09/2022 |
8823 | 2^338065+199947 | 101768 | Stefano Morozzi | 02/2023 |
8824 | 2^338060-151047 | 101767 | Stefano Morozzi | 12/2021 |
8825 | 2^338060-130805 | 101767 | Stefano Morozzi | 02/2022 |
8826 | 2^338060-136593 | 101767 | Stefano Morozzi | 12/2022 |
8827 | 2^338062-15725 | 101767 | Stefano Morozzi | 01/2023 |
8828 | 2^338058-76415 | 101766 | Stefano Morozzi | 12/2021 |
8829 | 2^338057+83865 | 101766 | Stefano Morozzi | 03/2022 |
8830 | 2^338057+86997 | 101766 | Stefano Morozzi | 04/2022 |
8831 | 2^338058+188589 | 101766 | Stefano Morozzi | 05/2022 |
8832 | 2^338058+68089 | 101766 | Stefano Morozzi | 09/2022 |
8833 | 2^338059+121803 | 101766 | Stefano Morozzi | 11/2022 |
8834 | 2^338057-39021 | 101766 | Stefano Morozzi | 01/2023 |
8835 | 2^338056+50605 | 101765 | Stefano Morozzi | 11/2021 |
8836 | 2^338053+53231 | 101765 | Stefano Morozzi | 01/2022 |
8837 | 2^338054-180497 | 101765 | Stefano Morozzi | 02/2022 |
8838 | 2^338053+59891 | 101765 | Stefano Morozzi | 03/2022 |
8839 | 2^338056+33987 | 101765 | Stefano Morozzi | 03/2022 |
8840 | 2^338055-157779 | 101765 | Stefano Morozzi | 03/2022 |
8841 | 2^338056+90307 | 101765 | Stefano Morozzi | 06/2022 |
8842 | 2^338055+124443 | 101765 | Stefano Morozzi | 02/2023 |
8843 | 2^338052-55373 | 101764 | Stefano Morozzi | 02/2022 |
8844 | 2^338050-138281 | 101764 | Stefano Morozzi | 12/2022 |
8845 | 2^338050+148959 | 101764 | Stefano Morozzi | 02/2023 |
8846 | 2^338051-118159 | 101764 | Stefano Morozzi | 02/2023 |
8847 | 2^338048+31185 | 101763 | Stefano Morozzi | 01/2022 |
8848 | 2^338047+31935 | 101763 | Stefano Morozzi | 02/2022 |
8849 | 2^338047+108011 | 101763 | Stefano Morozzi | 02/2022 |
8850 | 2^338049+56777 | 101763 | Stefano Morozzi | 02/2022 |
8851 | 2^338049-7531 | 101763 | Stefano Morozzi | 03/2022 |
8852 | 2^338048-304019 | 101763 | Harrison Mesh | 06/2022 |
8853 | 2^338049+191291 | 101763 | Stefano Morozzi | 06/2022 |
8854 | 2^338047-187699 | 101763 | Stefano Morozzi | 12/2022 |
8855 | 2^338047-66405 | 101763 | Stefano Morozzi | 01/2023 |
8856 | 2^338049-192633 | 101763 | Stefano Morozzi | 02/2023 |
8857 | 2^338046-25841 | 101762 | Stefano Morozzi | 12/2021 |
8858 | 2^338046-2285 | 101762 | Stefano Morozzi | 12/2021 |
8859 | 2^338046-177851 | 101762 | Stefano Morozzi | 01/2022 |
8860 | 2^338043+84045 | 101762 | Stefano Morozzi | 03/2022 |
8861 | 2^338046-57573 | 101762 | Stefano Morozzi | 03/2022 |
8862 | 2^338044-8177 | 101762 | Stefano Morozzi | 04/2022 |
8863 | 2^338045-58443 | 101762 | Stefano Morozzi | 04/2022 |
8864 | 2^338044+193497 | 101762 | Stefano Morozzi | 09/2022 |
8865 | 2^338043+45701 | 101762 | Stefano Morozzi | 11/2022 |
8866 | 2^338044-114197 | 101762 | Stefano Morozzi | 01/2023 |
8867 | 2^338042+194973 | 101761 | Stefano Morozzi | 11/2022 |
8868 | 2^338040-164483 | 101761 | Stefano Morozzi | 01/2023 |
8869 | 2^338038-57887 | 101760 | Stefano Morozzi | 04/2022 |
8870 | 2^338037+139169 | 101760 | Stefano Morozzi | 05/2022 |
8871 | 2^338037+188595 | 101760 | Stefano Morozzi | 05/2022 |
8872 | 2^338038-187241 | 101760 | Stefano Morozzi | 12/2022 |
8873 | 2^338039+124035 | 101760 | Stefano Morozzi | 02/2023 |
8874 | 2^338037-42523 | 101760 | Stefano Morozzi | 02/2023 |
8875 | 2^338034+125653 | 101759 | Stefano Morozzi | 11/2021 |
8876 | 2^338034-25211 | 101759 | Stefano Morozzi | 12/2021 |
8877 | 2^338033-154099 | 101759 | Stefano Morozzi | 02/2022 |
8878 | 2^338034-31803 | 101759 | Stefano Morozzi | 03/2022 |
8879 | 2^338033+162311 | 101759 | Stefano Morozzi | 04/2022 |
8880 | 2^338033-83071 | 101759 | Stefano Morozzi | 04/2022 |
8881 | 2^338035-158095 | 101759 | Stefano Morozzi | 04/2022 |
8882 | 2^338036-34193 | 101759 | Stefano Morozzi | 04/2022 |
8883 | 2^338036+42873 | 101759 | Stefano Morozzi | 09/2022 |
8884 | 2^338036+93373 | 101759 | Stefano Morozzi | 09/2022 |
8885 | 2^338035+146129 | 101759 | Stefano Morozzi | 11/2022 |
8886 | 2^338036+23983 | 101759 | Stefano Morozzi | 11/2022 |
8887 | 2^338036+170433 | 101759 | Stefano Morozzi | 11/2022 |
8888 | 2^338031+79989 | 101758 | Stefano Morozzi | 01/2022 |
8889 | 2^338032+158073 | 101758 | Stefano Morozzi | 02/2022 |
8890 | 2^338030-54371 | 101758 | Stefano Morozzi | 02/2022 |
8891 | 2^338032-180747 | 101758 | Stefano Morozzi | 02/2022 |
8892 | 2^338029-27909 | 101757 | Stefano Morozzi | 01/2022 |
8893 | 2^338027+70475 | 101757 | Stefano Morozzi | 11/2022 |
8894 | 2^338028-38705 | 101757 | Stefano Morozzi | 12/2022 |
8895 | 2^338028-140459 | 101757 | Stefano Morozzi | 01/2023 |
8896 | 2^338024-128495 | 101756 | Stefano Morozzi | 01/2022 |
8897 | 2^338025+34785 | 101756 | Stefano Morozzi | 03/2022 |
8898 | 2^338025-181765 | 101756 | Stefano Morozzi | 03/2022 |
8899 | 2^338024+63765 | 101756 | Stefano Morozzi | 05/2022 |
8900 | 2^338023-160621 | 101756 | Stefano Morozzi | 06/2022 |
8901 | 2^338026+117553 | 101756 | Stefano Morozzi | 09/2022 |
8902 | 2^338020-52437 | 101755 | Stefano Morozzi | 12/2021 |
8903 | 2^338021+160241 | 101755 | Stefano Morozzi | 03/2022 |
8904 | 2^338022+185845 | 101755 | Stefano Morozzi | 03/2022 |
8905 | 2^338021+189587 | 101755 | Stefano Morozzi | 05/2022 |
8906 | 2^338021-85891 | 101755 | Stefano Morozzi | 06/2022 |
8907 | 2^338020-87797 | 101755 | Stefano Morozzi | 12/2022 |
8908 | 2^338018-102741 | 101754 | Stefano Morozzi | 01/2022 |
8909 | 2^338018+29937 | 101754 | Stefano Morozzi | 01/2022 |
8910 | 2^338017-29505 | 101754 | Stefano Morozzi | 02/2022 |
8911 | 2^338018-30873 | 101754 | Stefano Morozzi | 02/2022 |
8912 | 2^338018-157013 | 101754 | Stefano Morozzi | 03/2022 |
8913 | 2^338019+168929 | 101754 | Stefano Morozzi | 09/2022 |
8914 | 2^338017+172721 | 101754 | Stefano Morozzi | 11/2022 |
8915 | 2^338018-136131 | 101754 | Stefano Morozzi | 12/2022 |
8916 | 2^338016+50797 | 101753 | Stefano Morozzi | 11/2021 |
8917 | 2^338016+26707 | 101753 | Stefano Morozzi | 12/2021 |
8918 | 2^338014+104677 | 101753 | Stefano Morozzi | 01/2022 |
8919 | 2^338013+145091 | 101753 | Stefano Morozzi | 11/2022 |
8920 | 2^338016-16335 | 101753 | Stefano Morozzi | 01/2023 |
8923 | 2^338010-19833 | 101752 | Enzo Doria | 06/2013 |
8921 | 2^338011+28665 | 101752 | Stefano Morozzi | 01/2022 |
8922 | 2^338010+89505 | 101752 | Stefano Morozzi | 05/2022 |
8924 | 2^338007+58985 | 101751 | Stefano Morozzi | 03/2022 |
8925 | 2^338008+109741 | 101751 | Stefano Morozzi | 03/2022 |
8926 | 2^338009+9527 | 101751 | Stefano Morozzi | 03/2022 |
8927 | 2^338007+14511 | 101751 | Stefano Morozzi | 05/2022 |
8928 | 2^338008+67957 | 101751 | Stefano Morozzi | 09/2022 |
8929 | 2^338009-11935 | 101751 | Stefano Morozzi | 12/2022 |
8930 | 2^338007-14199 | 101751 | Stefano Morozzi | 01/2023 |
8931 | 2^338005-75829 | 101750 | Stefano Morozzi | 12/2021 |
8932 | 2^338006-125055 | 101750 | Stefano Morozzi | 12/2021 |
8933 | 2^338006+5013 | 101750 | Stefano Morozzi | 01/2022 |
8934 | 2^338003+40269 | 101750 | Stefano Morozzi | 06/2022 |
8935 | 2^338006+166495 | 101750 | Stefano Morozzi | 06/2022 |
8936 | 2^338003-188551 | 101750 | Stefano Morozzi | 12/2022 |
8937 | 2^338006-118041 | 101750 | Stefano Morozzi | 02/2023 |
8938 | 2^338000+25113 | 101749 | Stefano Morozzi | 12/2021 |
8940 | 3^213215-76 | 101730 | Lelio R Paula | 09/2016 |
8939 | 23907^17998+17998^23907 | 101730 | Hans Havermann | 01/2019 |
8941 | 10^101728+154953 | 101729 | Patrick De Geest | 02/2020 |
8944 | 2^337930+63 | 101728 | Lelio R Paula | 07/2011 |
8942 | 10^101728-987654321 | 101728 | Robert Price | 12/2019 |
8943 | 10^101728-60741 | 101728 | Patrick De Geest | 02/2020 |
8945 | 2^337920+1869661 | 101725 | Enzo Doria | 05/2016 |
8946 | 2^337922+100280245065 | 101725 | Paul Bourdelais | 10/2021 |
8947 | 24116^16509+16509^24116 | 101715 | Hans Havermann | 01/2019 |
8948 | (2^337875+3174)/2 | 101711 | Stefano Morozzi | 09/2020 |
8949 | 2^337859-19645 | 101706 | Enzo Doria | 05/2013 |
8950 | 2^337754+1869169 | 101675 | Enzo Doria | 05/2016 |
8951 | (7*10^(2*50830+1)-9*10^50830-7)/9 | 101661 | Robert Price | 10/2023 |
8952 | 3*10^101657-37 | 101658 | Robert Price | 07/2018 |
8953 | (31*2^337677-1)/593 | 101650 | Lelio R Paula | 03/2014 |
8954 | 11^97605-24 | 101646 | Lelio R Paula | 10/2016 |
8955 | (83*10^101636+133)/9 | 101637 | Robert Price | 08/2021 |
8956 | (2^337624+3606)/2 | 101635 | Stefano Morozzi | 09/2020 |
8957 | 8^112539-112539 | 101633 | Robert Price | 01/2014 |
8958 | (2^337575+1818)/2 | 101620 | Stefano Morozzi | 02/2021 |
8959 | (11*10^101613+61)/9 | 101614 | Tyler Busby | 01/2023 |
8960 | 25694^9003+9003^25694 | 101605 | Hans Havermann | 12/2018 |
8961 | 2^337515-19869 | 101603 | Enzo Doria | 06/2013 |
8962 | 2^337473+719 | 101590 | Lelio R Paula | 08/2011 |
8963 | (2^337485-509203)/656647157 | 101585 | Lelio R Paula | 12/2013 |
8964 | 2^337452-108815 | 101584 | Enzo Doria | 03/2014 |
8965 | 2^337453+1185 | 101584 | Lelio R Paula | 09/2016 |
8966 | (41*10^101583+319)/9 | 101584 | Robert Price | 06/2021 |
8967 | 2^337410-113561 | 101571 | Enzo Doria | 08/2014 |
8968 | 2^337387+855 | 101564 | Lelio R Paula | 09/2016 |
8969 | 2^337367-17295 | 101558 | Lelio R Paula | 09/2016 |
8970 | 2^337342-109035 | 101551 | Enzo Doria | 04/2014 |
8971 | 23703^19238+19238^23703 | 101548 | Hans Havermann | 12/2018 |
8972 | (26*10^101537-167)/3 | 101538 | Robert Price | 10/2019 |
8973 | 2^337267-19 | 101528 | Lelio R Paula | 07/2011 |
8974 | (2^337259+1766)/2 | 101525 | Stefano Morozzi | 09/2020 |
8975 | (2^337257+2306)/2 | 101525 | Stefano Morozzi | 02/2021 |
8976 | 2^337222-340871 | 101514 | Harrison Mesh | 06/2022 |
8977 | (2^337195+2646)/2 | 101506 | Stefano Morozzi | 09/2020 |
8978 | 2^337183-19989 | 101503 | Enzo Doria | 06/2013 |
8979 | 2^337149+72425 | 101492 | Enzo Doria | 04/2016 |
8980 | 24041^16642+16642^24041 | 101483 | Hans Havermann | 12/2018 |
8981 | 33982^969+969^33982 | 101482 | Hans Havermann | 12/2018 |
8982 | 2^337101-20241 | 101478 | Enzo Doria | 06/2013 |
8983 | 2^337035-20001 | 101458 | Enzo Doria | 06/2013 |
8984 | (7*10^101456+89)/3 | 101457 | Robert Price | 08/2020 |
8985 | 2^337017-16995 | 101453 | Lelio R Paula | 09/2016 |
8986 | (347^40448+1)/(347^512+1) | 101451 | Martin Hopf | 12/2023 |
8987 | (8677^25759-1)/8676 | 101445 | Serge Batalov | 06/2022 |
8988 | 2^336979-115315 | 101441 | Enzo Doria | 06/2015 |
8989 | 2^336970-20885 | 101439 | Enzo Doria | 06/2013 |
8990 | 2^336958+79 | 101435 | Lelio R Paula | 10/2009 |
8991 | (1589^31687-1)/1588 | 101431 | Serge Batalov | 06/2022 |
8992 | 2^336942+169 | 101430 | Lelio R Paula | 10/2009 |
8993 | (193929^19321-1)/(193929^139-1) | 101428 | Ryan Propper | 11/2023 |
8994 | (15185*2^336894-1)/7939 | 101416 | Lelio R Paula | 05/2015 |
8995 | 4*10^101415-89 | 101416 | Robert Price | 11/2018 |
8996 | (14*10^101410-89)/3 | 101411 | Robert Price | 05/2020 |
8997 | 2^336871+257463 | 101409 | Tony Prest / Never Odd Or Even | 04/2016 |
8998 | 2^336871+318105 | 101409 | Tony Prest / Never Odd Or Even | 04/2016 |
8999 | 2^336871+1010813 | 101409 | Tony Prest / Never Odd Or Even | 04/2016 |
9000 | 2^336871+2302245 | 101409 | Tony Prest / Never Odd Or Even | 04/2016 |