Henri & Renaud Lifchitz's PRP Top records

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) !!!

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1-250	251-500	501-750	751-1000	1001-1250	1251-1500	1501-1750	1751-2000
2001-2250	2251-2500	2501-2750	2751-3000	3001-3250	3251-3500	3501-3750	3751-4000
4001-4250	4251-4500	4501-4750	4751-5000	5001-5250	5251-5500	5501-5750	5751-6000
6001-6250	6251-6500	6501-6750	6751-7000	7001-7250	7251-7500	7501-7750	7751-8000
8001-8250	8251-8500	8501-8750	8751-9000	9001-9250	9251-9500	9501-9750	9751-10000

Rank	Probable prime	Digits (> 50000)	Who ?	When ?
1501	10^193566-10000000001	193566	Robert Price	04/2021
1502	2^642888-24965	193529	Enzo Doria	09/2013
1503	2^642448-114825	193397	Enzo Doria	05/2015
1504	2^642437-1856623	193393	Enzo Doria	10/2015
1505	2^642039-59797	193273	Enzo Doria	11/2015
1506	10^193230+513861	193231	Patrick De Geest	07/2018
1507	10^193230-8001	193230	Robert Price	03/2018
1508	(62*10^193225-233)/9	193226	Robert Price	02/2022
1509	2^641692-286349	193169	Enzo Doria	07/2015
1510	2^641690-24737	193168	Enzo Doria	09/2013
1511	2^641514+1876549	193115	Enzo Doria	07/2016
1512	2^640888-2785619	192927	Enzo Doria	10/2015
1513	2^640874-2783741	192923	Enzo Doria	09/2015
1514	10^192922+192207	192923	Patrick De Geest	08/2021
1515	10^192922-7001	192922	Robert Price	04/2021
1516	2^640854+25	192917	Stefano Morozzi	05/2021
1517	34*10^192868-9	192870	Robert Price	06/2020
1518	(46*10^192841+683)/9	192842	Robert Price	03/2019
1519	2^640181+467	192714	Lelio R Paula	08/2013
1520	2^639536-1850249	192520	Enzo Doria	08/2015
1521	40714<>40712<>...<>1086421357911<>...<>40711<>40713	192464	Hans Havermann	12/2019
1522	5*10^192422-43	192423	Robert Price	01/2019
1523	2^639110-2792441	192392	Enzo Doria	02/2016
1524	2^638955-29827	192345	Enzo Doria	08/2015
1525	2^638713-2784223	192272	Enzo Doria	10/2015
1526	(10^192216+7)/149	192214	Alfred Reich	07/2021
1527	2^638490-113507	192205	Enzo Doria	08/2014
1528	2^638189-39943	192115	Enzo Doria	09/2015
1529	2^638110+1877119	192091	Enzo Doria	07/2016
1530	2^638066-2785211	192078	Enzo Doria	10/2015
1531	(35*10^191973-341)/9	191974	Robert Price	08/2021
1532	(112*10^191900+17)/3	191902	Robert Price	03/2020
1533	2^637475-115309	191900	Enzo Doria	07/2015
1534	(68*10^191754-113)/9	191755	Robert Price	03/2021
1535	2^636930-11	191736	Stefano Morozzi	07/2022
1536	(47*10^191732+259)/9	191733	Robert Price	03/2022
1537	2^636661+1876577	191655	Enzo Doria	07/2016
1538	(34^125101-1)/33	191589	Paul Bourdelais	11/2017
1539	2^636177-1855123	191509	Enzo Doria	09/2015
1540	2^636158-113627	191503	Enzo Doria	08/2014
1541	(37*25^136966+63)/4	191472	Curtis Bright	05/2015
1542	2^636035+79823	191466	Enzo Doria	06/2016
1543	2^636011-1860847	191459	Enzo Doria	11/2015
1544	2^635926-1860611	191433	Enzo Doria	11/2015
1545	3*10^191152-7	191153	Robert Price	08/2015
1546	2^634883-1865677	191119	Enzo Doria	02/2016
1547	2^634801+1871957	191095	Enzo Doria	05/2016
1548	(77*10^191080+157)/9	191081	Robert Price	05/2022
1549	(35*10^191073+1)/9	191074	Serge Batalov	07/2010
1550	9*10^191018-41	191019	Robert Price	08/2020
1551	2^634470-59861	190995	Enzo Doria	11/2015
1552	2^634368-29519	190964	Enzo Doria	08/2015
1553	2^634188-350609	190910	Enzo Doria	06/2015
1554	(65*10^190899+493)/9	190900	Robert Price	08/2021
1555	(62*10^190795-413)/9	190796	Robert Price	09/2021
1556	(26*10^190789-131)/3	190790	Robert Price	10/2019
1557	(13*10^190732-61)/3	190733	Robert Price	11/2018
1558	(7*10^190683+143)/3	190684	Robert Price	03/2018
1559	2^633088-113879	190579	Enzo Doria	10/2014
1560	2^633064+1874911	190572	Enzo Doria	06/2016
1561	(43*10^190547+83)/9	190548	Robert Price	11/2018
1562	99*10^190543+7	190545	Robert Price	05/2021
1563	(299*10^190533+1)/3	190535	Robert Price	04/2020
1564	(1744*10^190519-1747)/3	190522	Robert Price	12/2020
1565	2^632815-15	190497	Stefano Morozzi	07/2022
1566	2^632795-351205	190491	Enzo Doria	06/2015
1567	41171^41272+41272^41171	190454	Norbert Schneider	05/2023
1568	(16*10^190420-19)/3	190421	Robert Price	02/2019
1569	(43*10^190351+101)/9	190352	Robert Price	11/2018
1570	2^632156+78391	190298	Enzo Doria	06/2016
1571	97*10^190295-3	190297	Robert Price	05/2020
1572	2^632082-1851971	190276	Enzo Doria	08/2015
1573	2^632020+1880311	190257	Enzo Doria	09/2016
1574	(5*10^190242-77)/9	190242	Robert Price	04/2021
1575	7*10^190210+13	190211	Robert Price	03/2021
1576	2^631637-462373	190142	Enzo Doria	08/2015
1577	2*10^190126-21	190127	Robert Price	09/2020
1578	(28*10^190105+191)/3	190106	Robert Price	02/2020
1579	2*10^190093+33	190094	Robert Price	11/2021
1580	(68*10^190053-113)/9	190054	Robert Price	03/2021
1581	2^631122-39251	189987	Enzo Doria	08/2015
1582	(26*10^189928-89)/9	189929	Robert Price	06/2018
1583	2^630839-97	189902	Yves Minet	07/2017
1584	99*10^189876-7	189878	Robert Price	07/2020
1585	2^630359+1788953	189757	Enzo Doria	05/2016
1586	2^630228+1871971	189718	Enzo Doria	05/2016
1587	2^630108+781	189682	Lelio R Paula	08/2013
1588	2^629870-1867811	189610	Enzo Doria	04/2016
1589	(359^74189-1)/358	189558	Alexander Zhirkov	11/2017
1590	2^629326+2792929	189447	Enzo Doria	02/2016
1591	4*10^189401+13	189402	Robert Price	02/2021
1592	(10^189385-61)/3	189385	Serge Batalov	12/2014
1593	2^629036+1874011	189359	Enzo Doria	06/2016
1594	2^628930+80779	189327	Enzo Doria	07/2016
1595	(134*10^189309-11)/3	189311	Robert Price	01/2022
1596	9*10^189306-11	189307	Mischa Rodermond	04/2023
1597	2^628582+1179439	189223	Enzo Doria	06/2016
1598	(44*10^188999-503)/9	189000	Robert Price	12/2018
1599	(16*10^188823+167)/3	188824	Robert Price	06/2019
1600	(10^188796+7)/4967/71933	188788	Alfred Reich	08/2021
1601	2^627037-2785843	188757	Enzo Doria	10/2015
1602	(10^188566+7)/311640753181661	188552	Alfred Reich	04/2022
1603	(16*10^188457+161)/3	188458	Robert Price	02/2019
1604	L(901657)	188436	Renaud Lifchitz	11/2008
1605	(19*10^188375+137)/3	188376	Robert Price	03/2022
1606	2^625651+74213	188340	Enzo Doria	04/2016
1607	2^625584-460919	188320	Enzo Doria	06/2015
1608	(8*10^188308-71)/9	188308	Serge Batalov	11/2022
1609	(14*10^188218+139)/9	188219	Robert Price	11/2021
1610	(10^188164+359)/9	188164	Serge Batalov	12/2014
1611	2^624481-113611	187988	Enzo Doria	08/2014
1614	(2^624389+125582)/2	187960	Stefano Morozzi	09/2019
1612	(2^624389+166982)/2	187960	Stefano Morozzi	09/2019
1613	(2^624389+179886)/2	187960	Stefano Morozzi	09/2019
1615	(2^624387+64466)/2	187959	Stefano Morozzi	09/2019
1616	(2^624378+112990)/2	187957	Stefano Morozzi	09/2019
1617	(2^624380+161986)/2	187957	Stefano Morozzi	09/2019
1619	(2^624376+55762)/2	187956	Stefano Morozzi	09/2019
1618	(2^624377+169506)/2	187956	Stefano Morozzi	09/2019
1620	(2^624355+80178)/2	187950	Stefano Morozzi	09/2019
1621	(2^624351+61350)/2	187949	Stefano Morozzi	09/2019
1622	(2^624341+63462)/2	187946	Stefano Morozzi	09/2019
1623	(2^624344+135990)/2	187946	Stefano Morozzi	09/2019
1624	(2^624344+183898)/2	187946	Stefano Morozzi	09/2019
1626	(2^624340+126982)/2	187945	Stefano Morozzi	09/2019
1625	(2^624338+196110)/2	187945	Stefano Morozzi	09/2019
1627	(2^624337+105162)/2	187944	Stefano Morozzi	09/2019
1628	(2^624333+44594)/2	187943	Stefano Morozzi	09/2019
1629	(2^624321+88742)/2	187940	Stefano Morozzi	09/2019
1630	(2^624324+135178)/2	187940	Stefano Morozzi	09/2019
1631	(2^624317+14186)/2	187938	Stefano Morozzi	09/2019
1632	(2^624313+24450)/2	187937	Stefano Morozzi	09/2019
1633	(2^624309+184590)/2	187936	Stefano Morozzi	09/2019
1635	(2^624307+152658)/2	187935	Stefano Morozzi	09/2019
1634	(2^624307+185978)/2	187935	Stefano Morozzi	09/2019
1636	(2^624303+40814)/2	187934	Stefano Morozzi	09/2019
1637	(2^624304+99238)/2	187934	Stefano Morozzi	09/2019
1638	2^624077-112723	187866	Enzo Doria	07/2014
1639	2^624008+1874941	187846	Enzo Doria	06/2016
1640	2^623870+78679	187804	Enzo Doria	05/2016
1641	2^623714-114035	187757	Enzo Doria	11/2014
1642	2^623651-1834251	187738	Enzo Doria	07/2015
1643	(7*10^187645+53)/3	187646	Robert Price	05/2018
1644	21650^43269+43269^21650	187591	Norbert Schneider	02/2023
1645	2^623146+1879609	187586	Enzo Doria	09/2016
1646	(401*10^187512+13)/9	187514	Robert Price	09/2021
1647	(5*10^187471+91)/3	187472	Robert Price	04/2018
1648	2^622500+81931	187392	Enzo Doria	08/2016
1649	(13*10^187382-157)/9	187383	Robert Price	05/2021
1650	2^622300-1861739	187331	Enzo Doria	12/2015
1651	(22*10^187317-91)/3	187318	Robert Price	02/2022
1652	(38*10^187281+349)/9	187282	Robert Price	10/2018
1653	2^622052+76771	187257	Enzo Doria	05/2016
1654	2^622005-24091	187243	Enzo Doria	08/2013
1655	7*10^187205-57	187206	Robert Price	06/2020
1656	2^621879-351787	187205	Enzo Doria	07/2015
1657	(5*10^187168-53)/3	187169	Robert Price	09/2020
1658	(23*10^187164-143)/3	187165	Robert Price	12/2019
1659	2^621700+79411	187151	Enzo Doria	06/2016
1660	(7*10^187101+131)/3	187102	Robert Price	06/2020
1661	(2*10^187062-71)/3	187062	Robert Price	12/2017
1662	2^620929-113203	186919	Enzo Doria	07/2014
1663	10^186842+168223	186843	Patrick De Geest	07/2018
1664	10^186842-8001	186842	Robert Price	03/2018
1665	2^620347-1777	186744	Lelio R Paula	07/2013
1666	(11*10^186659+133)/9	186660	Robert Price	04/2022
1667	11^179143-4170	186559	Enzo Doria	12/2012
1668	(5^266863+1)/6	186529	Paul Bourdelais	07/2010
1669	2*10^186517+33	186518	Robert Price	11/2021
1670	2^619297-2792353	186427	Enzo Doria	02/2016
1671	(49*10^186409+383)/9	186410	Robert Price	04/2019
1672	2^618940-460139	186320	Enzo Doria	06/2015
1673	2^618046+74179	186051	Enzo Doria	04/2016
1674	3*10^186019+11	186020	Robert Price	07/2018
1675	(16*10^185978-19)/3	185979	Robert Price	02/2019
1676	(22*10^185950-7)/3	185951	Robert Price	12/2022
1677	2*10^185930-3	185931	Robert Price	07/2015
1678	(82^97151+1)/83	185928	Paul Bourdelais	10/2017
1679	4*10^185905+91	185906	Robert Price	08/2018
1680	(34*10^185902-601)/9	185903	Robert Price	07/2022
1681	(19*10^185873+131)/3	185874	Robert Price	06/2020
1682	(37*10^185811+377)/9	185812	Robert Price	11/2018
1683	2^617250+9385	185811	Lelio R Paula	07/2013
1684	2^617130+9	185775	Stefano Morozzi	05/2021
1685	39^116749+2	185756	Robert Price	04/2015
1686	2^616924-39719	185713	Enzo Doria	09/2015
1687	2^616712+1867621	185649	Enzo Doria	04/2016
1688	(3^388897+2^388897)/5	185551	Jean-Louis Charton	09/2011
1689	8*10^185529-67	185530	Robert Price	08/2019
1690	(5*10^185520-11)/3	185521	Tyler Busby	02/2023
1691	4*10^185355+9	185356	Robert Price	05/2015
1692	(16*10^185347+89)/3	185348	Robert Price	03/2021
1693	2^615622+76639	185321	Enzo Doria	05/2016
1694	2^615591+1879223	185312	Enzo Doria	08/2016
1695	2^615503+1876643	185285	Enzo Doria	07/2016
1696	5^265007-4^265007	185232	Jean-Louis Charton	02/2013
1697	(4*10^185221-91)/3	185222	Robert Price	03/2018
1698	(7*10^185221+131)/3	185222	Robert Price	06/2020
1699	(62*10^185216-413)/9	185217	Robert Price	09/2021
1700	(232*10^185180+17)/3	185182	Robert Price	04/2021
1701	56*10^185139-3	185141	Robert Price	03/2020
1702	(28*10^185105+47)/3	185106	Robert Price	02/2021
1703	2^614783-2790097	185069	Enzo Doria	12/2015
1704	2^614745-29323	185057	Enzo Doria	07/2015
1705	(((((((((((2^3+3)^3+30)^3+6)^3+80)^3+12)^3+450)^3+894)^3+3636)^3+70756)^3+97220)^3+66768)^3+300840	185052	Serge Batalov	07/2013
1706	(49*10^184993-67)/9	184994	Robert Price	03/2019
1707	(5*10^184954-191)/3	184955	Robert Price	05/2021
1708	(14*10^184950+211)/9	184951	Robert Price	04/2018
1709	2^614315+81353	184928	Enzo Doria	08/2016
1710	2^614294-1849961	184921	Enzo Doria	08/2015
1711	2^614266+1877809	184913	Enzo Doria	08/2016
1712	(185*10^184878-11)/3	184880	Robert Price	10/2020
1713	91*10^184867-9	184869	Robert Price	06/2021
1714	(85*10^184768+77)/9	184769	Robert Price	07/2022
1715	2^613715-1860727	184747	Enzo Doria	11/2015
1716	(4*10^184730+89)/3	184731	Robert Price	08/2021
1717	2*10^184723+41	184724	Robert Price	05/2018
1718	(49*10^184703+293)/9	184704	Robert Price	03/2021
1719	2^613487-349987	184678	Enzo Doria	07/2015
1720	(95^93377+1)/96	184672	Paul Bourdelais	11/2017
1721	14^161089-161089^14	184629	Serge Batalov	05/2016
1722	2^613033-114621	184542	Enzo Doria	05/2015
1723	(9^193247+1)/10	184404	Paul Bourdelais	02/2010
1724	2^612341-1604809	184334	Enzo Doria	05/2015
1725	(11*10^184308-161)/3	184309	Robert Price	11/2021
1726	(2^611999-1)/18464214225958267477777390354183	184199	Dario Alpern	06/2017
1727	(14*10^184150+37)/3	184151	Robert Price	12/2018
1728	2^611731-4837	184150	Yves Minet	08/2018
1729	3*10^184124-7	184125	Robert Price	08/2015
1730	9*10^184122-11	184123	Mischa Rodermond	04/2023
1731	2^611628-24537	184119	Enzo Doria	08/2013
1732	3*10^184110+13	184111	Robert Price	07/2018
1733	(194*10^184093+1)/3	184095	Robert Price	01/2022
1734	2^611460+71881	184068	Enzo Doria	04/2016
1735	4*10^184004-63	184005	Robert Price	10/2018
1736	2^610982-1867301	183924	Enzo Doria	03/2016
1737	3*10^183872-49	183873	Robert Price	07/2018
1738	2^610597+1178897	183809	Enzo Doria	05/2016
1739	(8*10^183773-269)/9	183773	Robert Price	09/2021
1740	(65*10^183768-29)/9	183769	Robert Price	01/2021
1741	(17*10^183764+31)/3	183765	Robert Price	01/2019
1742	(28*10^183760-1)/9	183761	Serge Batalov	10/2014
1743	2^610401+1277	183750	Lelio R Paula	07/2013
1744	2^610356-1849019	183736	Enzo Doria	08/2015
1745	(63^102103+1)/64	183717	Paul Bourdelais	10/2017
1746	23*10^183710-7	183712	Robert Price	02/2020
1747	(2^610289+1)/(3*528882550291)	183704	Gord Palameta	08/2018
1748	(4*10^183659+149)/9	183659	Robert Price	04/2018
1749	(4*10^183657+41)/9	183657	Serge Batalov	11/2022
1750	7*10^183596+39	183597	Robert Price	01/2023

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