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 ?
7751	2^363769+5711	109506	Lelio R Paula	04/2017
7752	(31*2^363748+1)/49	109499	Lelio R Paula	03/2014
7753	26^77372+25	109480	Anonymous	09/2024
7754	(2^363670+100280245065)	109476	Paul Bourdelais	05/2022
7755	p(22245)#/2-8	109462	Robert Price	01/2017
7756	2^363556+55	109442	Lelio R Paula	01/2012
7757	(509*10^109414+31)/9	109416	Robert Price	08/2022
7758	(2^363437+1682)/2	109406	Stefano Morozzi	09/2020
7759	(55459*2^363411+1)/81	109401	Lelio R Paula	07/2014
7760	2^363406+1871569	109397	Enzo Doria	05/2016
7761	(129^51829-1)/128	109388	Anonymous	06/2024
7762	(2^363370+1338)/2	109385	Stefano Morozzi	02/2021
7763	(2^363349+7)/9	109378	Lelio R Paula	01/2014
7764	(13869^26569-1)/(13869^163-1)	109375	Ryan Propper	11/2023
7765	3^229236+100	109374	Lelio R Paula	03/2017
7766	(2^363315+3258)/2	109369	Stefano Morozzi	02/2021
7767	2^363268-58695	109355	Lelio R Paula	04/2017
7768	2^363191-112321	109332	Enzo Doria	06/2014
7769	26231^14718+14718^26231	109327	Hans Havermann	10/2020
7770	25461^19672+19672^25461	109326	Hans Havermann	10/2020
7771	4*10^109316-63	109317	Robert Price	10/2018
7772	2^363120+3	109311	Donovan Johnson	04/2006
7773	(10^109297-1)/9	109297	Paul Bourdelais, Harvey Dubner	04/2007
7774	2^363042-114641	109287	Enzo Doria	04/2015
7775	2^363020-112793	109280	Enzo Doria	06/2014
7776	(8732^27889-1)/(8732^167-1)	109256	Ryan Propper	11/2023
7777	(85*10^109253+203)/9	109254	Robert Price	09/2020
7778	24990^23431+23431^24990	109202	Hans Havermann	10/2020
7779	Phi(369781,-2)	109200	Henri Lifchitz	12/2025
7780	(2^362746+3738)/2	109198	Stefano Morozzi	09/2020
7781	(2^362716+1282)/2	109189	Stefano Morozzi	01/2021
7782	(67607*2^362695+1)/70499	109183	Lelio R Paula	07/2014
7783	25060^22737+22737^25060	109180	Hans Havermann	10/2020
7784	(9*2^362644+1)/5	109167	Lelio R Paula	03/2014
7785	5^156181+38	109166	Lelio R Paula	02/2017
7786	(2^362623+3618)/2	109161	Stefano Morozzi	09/2020
7787	25138^21993+21993^25138	109157	Hans Havermann	10/2020
7788	4*10^109142+91	109143	Robert Price	08/2018
7789	3^228750+68	109142	Lelio R Paula	03/2017
7790	(2^362561+786)/2	109142	Stefano Morozzi	09/2020
7791	578*29^74623+7	109132	Eric Chen	06/2025
7792	(23*10^109113+61)/3	109114	Robert Price	01/2022
7793	2*10^109100-49	109101	Robert Price	09/2020
7794	(10223*2^362376+1)/9	109090	Lelio R Paula	07/2014
7795	65^60167-64^60167	109078	Robert Price	08/2013
7796	Phi(63393,-1105)	109075	Henri Lifchitz	12/2025
7797	7*3^228589-2	109066	Lelio R Paula	09/2014
7798	24874^24243+24243^24874	109063	Hans Havermann	11/2020
7799	(17*10^109059-161)/9	109060	Robert Price	02/2021
7800	29158^5495+5495^29158	109050	Hans Havermann	11/2020
7801	(78557*2^362188+1)/189	109033	Lelio R Paula	07/2014
7802	2*7^129008+9	109025	Lelio R Paula	11/2014
7803	88*10^109022+7	109024	Robert Price	03/2020
7804	28194^7337+7337^28194	108985	Hans Havermann	10/2020
7805	(5*10^108960+91)/3	108961	Robert Price	04/2018
7806	2^361957+76367	108960	Enzo Doria	05/2016
7807	(11*29^74504-245655)/28	108955	Eric Chen	06/2025
7808	2^361873-1411	108935	Yves Minet	01/2013
7809	(24737*2^361857+1)/35	108933	Lelio R Paula	07/2014
7810	216^216^216+91^91^91	108917	Henri Lifchitz	03/2025
7811	47^65132-65132^47	108908	Norman Luhn	09/2024
7812	115^52842-114	108892	Norbert Schneider	07/2018
7813	13^97745-24	108883	Lelio R Paula	03/2017
7814	(2^361696+2562)/2	108882	Stefano Morozzi	09/2020
7815	17^88475+8	108864	Lelio R Paula	04/2017
7816	2^361567+51	108843	Lelio R Paula	01/2012
7817	2^361563-109501	108842	Enzo Doria	04/2014
7818	12^100852+83	108838	Lelio R Paula	03/2017
7819	2^361497+767	108822	Lelio R Paula	01/2012
7820	L(520691)/78103651/1057002731/42794551909	108791	Serge Batalov	07/2024
7821	28019^7630+7630^28019	108785	Hans Havermann	10/2020
7822	24723^24758-24758^24723	108765	Norbert Schneider	11/2020
7823	2^361280-112349	108757	Enzo Doria	06/2014
7824	2^361271-5955	108754	Lelio R Paula	04/2017
7825	12^100757+19	108736	Lelio R Paula	03/2017
7826	25368^19333+19333^25368	108735	Hans Havermann	11/2020
7827	(2^361195+3618)/2	108731	Stefano Morozzi	09/2020
7828	2^361153-111546435	108718	Paul Bourdelais	10/2021
7829	14^94849-61	108710	Lelio R Paula	05/2017
7830	27267^9700+9700^27267	108708	Hans Havermann	11/2020
7831	(19^85009-5^85009)/14	108705	Robert Price	07/2013
7832	24832^23853+23853^24832	108704	Hans Havermann	11/2020
7833	27502^8963+8963^27502	108701	Hans Havermann	11/2020
7834	(130^51419-1)/129	108695	Anonymous	06/2024
7835	25807^16278+16278^25807	108689	Hans Havermann	11/2020
7836	39^68306+38	108680	Alfred Reich	03/2026
7837	(11*2^361027+1)/40463	108677	Lelio R Paula	03/2014
7838	2^360973+1299	108664	Lelio R Paula	04/2017
7839	24^78728+23	108662	Anonymous	09/2024
7840	2^360959-109101	108660	Enzo Doria	04/2014
7841	6*5^155454+7	108659	Lelio R Paula	11/2014
7842	10^108656+79	108657	Lelio R Paula	02/2017
7843	10^108656-50001	108656	Patrick De Geest	03/2017
7844	2^360918-35	108648	Lelio R Paula	01/2012
7845	4*10^108646-47	108647	Robert Price	10/2021
7846	(11*2^360886-1)/7	108638	Lelio R Paula	03/2014
7847	3*10^108624-49	108625	Robert Price	07/2018
7848	(2^360831+666)/2	108621	Stefano Morozzi	09/2020
7849	(134*10^108610+7)/3	108612	Robert Price	02/2020
7850	2*10^108609+29	108610	Robert Price	02/2021
7851	(10^108604+7)/71/191	108600	Alfred Reich	06/2021
7852	(2^360742+3222)/2	108594	Stefano Morozzi	09/2020
7853	2^360706-458903	108584	Enzo Doria	04/2015
7854	31112^3087+3087^31112	108567	Hans Havermann	11/2020
7855	2^360641-113185	108564	Enzo Doria	07/2014
7856	(29*10^108559-71)/3	108560	Robert Price	07/2021
7858	2^360618+75019	108557	Enzo Doria	04/2016
7857	2^360618+2025	108557	Henri Lifchitz	01/2025
7859	2^360607-216367	108554	Harrison Mesh	06/2022
7860	29^74228+556	108551	Eric Chen	06/2025
7861	(14*10^108545-221)/9	108546	Robert Price	04/2018
7862	(44*10^108544-233)/9	108545	Robert Price	01/2019
7863	3*5^155286+2	108541	Lelio R Paula	11/2014
7864	7^128422+4	108530	Lelio R Paula	11/2014
7865	7^128421-80	108529	Lelio R Paula	03/2017
7866	2^360497+53807	108521	Yves Minet	07/2010
7867	2^360468-4559	108512	Yves Minet	03/2019
7868	(2^360451+578)/2	108507	Stefano Morozzi	09/2020
7869	2^360366+1459	108481	Lelio R Paula	09/2011
7870	2^360364-1499	108481	Yves Minet	05/2013
7871	25662^16871+16871^25662	108477	Hans Havermann	10/2020
7872	25009^21748+21748^25009	108475	Hans Havermann	10/2020
7873	14^94642-23	108472	Lelio R Paula	05/2017
7874	(197*10^108446-11)/3	108448	Robert Price	03/2020
7875	(2^360229+1290)/2	108440	Stefano Morozzi	01/2021
7876	4*10^108412+9	108413	Robert Price	05/2015
7877	(259*10^108409-1)/3	108411	Robert Price	12/2020
7878	(2^360122+1194)/2	108408	Stefano Morozzi	09/2020
7879	133^51042-132	108406	Norbert Schneider	02/2019
7880	2^360093-351103	108399	Enzo Doria	06/2015
7881	2^360042+723	108384	Lelio R Paula	01/2012
7882	85^56164-2	108364	Lelio R Paula	10/2013
7883	2^359937-29323	108352	Enzo Doria	07/2015
7884	22^80712-23	108350	Anonymous	09/2024
7885	(2^359922+1762)/2	108348	Stefano Morozzi	09/2020
7886	(2^359903+758)/2	108342	Stefano Morozzi	09/2020
7887	2^359898-19997	108341	Enzo Doria	06/2013
7888	(2^359886+2122)/2	108337	Stefano Morozzi	09/2020
7889	2*5^154948-7	108305	Lelio R Paula	11/2014
7890	10^108303+13	108304	Lelio R Paula	02/2017
7891	10^108303-207959	108303	Patrick De Geest	03/2017
7892	7*10^108300+69	108301	Robert Price	07/2019
7893	198^47155-47155^198	108300	Norman Luhn	09/2024
7894	2^359730+753	108290	Lelio R Paula	12/2011
7895	(8*10^108273+13)/3	108274	Robert Price	06/2018
7896	2^359650-19797	108266	Enzo Doria	06/2013
7897	(47*10^108261+259)/9	108262	Robert Price	03/2022
7898	91^55259-90^55259	108255	Robert Price	07/2015
7899	10^108251+85749	108252	Patrick De Geest	02/2021
7900	10^108251-50000000001	108251	Robert Price	12/2020
7901	10^108251-252081	108251	Patrick De Geest	02/2021
7902	4*10^108238-71	108239	Robert Price	12/2018
7903	3^226845+68	108233	Lelio R Paula	03/2017
7904	31836^2509+2509^31836	108227	Hans Havermann	10/2020
7905	5^154822-12866	108216	Enzo Doria	05/2014
7906	(9*2^359480+1)/5	108215	Lelio R Paula	03/2014
7907	2^359454-177	108207	Lelio R Paula	12/2011
7908	(19*10^108184+191)/3	108185	Robert Price	05/2019
7909	6^139022-59	108181	Lelio R Paula	02/2017
7910	(19*10^108176-43)/3	108177	Robert Price	05/2019
7911	2^359352-179	108176	Lelio R Paula	12/2011
7912	2^359338-1858781	108172	Enzo Doria	04/2016
7913	12^100230-97	108167	Lelio R Paula	03/2017
7914	27028^10043+10043^27028	108163	Hans Havermann	11/2020
7915	(25*2^359297-1)/137	108159	Lelio R Paula	03/2014
7916	(2^359262-509203)/9	108148	Lelio R Paula	12/2013
7917	26583^11702+11702^26583	108147	Hans Havermann	11/2020
7918	(3^226648-8)/352715633	108131	Lelio R Paula	12/2013
7919	6^138956-59	108129	Lelio R Paula	02/2017
7920	2^359184+30285	108126	Lelio R Paula	04/2017
7921	13^97059+10	108119	Lelio R Paula	03/2017
7922	2^359137-81	108112	Lelio R Paula	12/2011
7924	(15185*2^359105-1)/567	108103	Lelio R Paula	05/2015
7923	2^359110-11655	108103	Lelio R Paula	04/2017
7925	2^359069-933075	108091	Paul Bourdelais	06/2021
7926	26227^13222+13222^26227	108090	Hans Havermann	10/2020
7927	8*6^138875+5	108067	Lelio R Paula	11/2014
7928	2^358987-216919	108066	Enzo Doria	05/2014
7929	(2^358977+2714)/2	108063	Stefano Morozzi	09/2020
7930	39^67918-67918^39	108062	Norbert Schneider	02/2017
7931	24^78283-1*78283^24	108048	Dylan Delgado	12/2019
7932	25282^18767+18767^25282	108040	Hans Havermann	11/2020
7933	(918^36457-1)/917	108014	Tom Wu	08/2025
7934	2^358785-16933	108006	Enzo Doria	05/2013
7935	(2^358783+5)/33383	108000	Lelio R Paula	12/2013
7936	6^138770-77	107985	Lelio R Paula	02/2017
7937	(2^358727-1017)/94178479	107980	Lelio R Paula	12/2013
7938	10^107976+19	107977	Lelio R Paula	02/2017
7939	10^107976-202103	107976	Patrick De Geest	03/2017
7940	2^358684+75781	107975	Enzo Doria	04/2016
7941	24928^21411+21411^24928	107955	Hans Havermann	10/2020
7942	99^54094+2	107952	Lelio R Paula	06/2013
7943	(2^358583-9)/391	107942	Lelio R Paula	12/2013
7944	(2^358562+838)/2	107938	Stefano Morozzi	02/2021
7945	2^358538+55	107931	Lelio R Paula	12/2011
7946	2^358517-109009	107925	Enzo Doria	03/2014
7947	26395^12258+12258^26395	107914	Hans Havermann	10/2020
7948	3^226159+104	107906	Lelio R Paula	03/2017
7949	7*10^107870+39	107871	Robert Price	01/2023
7950	2^358310-11655	107863	Lelio R Paula	03/2017
7951	(68*10^107852-329)/9	107853	Robert Price	03/2021
7952	2^358275-112987	107852	Enzo Doria	07/2014
7953	3^226038+4	107848	Tyler NeSmith	01/2021
7954	2^358233-20005	107839	Enzo Doria	06/2013
7955	2^358194+175	107828	Lelio R Paula	12/2011
7956	107^53125-106	107812	Norbert Schneider	12/2016
7957	(25*10^107804+161)/3	107805	Robert Price	09/2019
7958	3^225922-2	107793	Lelio R Paula	10/2013
7959	12^99874-95	107783	Lelio R Paula	03/2017
7960	(2^358042+3042)/2	107782	Stefano Morozzi	09/2020
7961	2^358030-171	107778	Lelio R Paula	12/2011
7962	11^103488-4170	107772	Enzo Doria	12/2012
7963	2^357930-4547	107748	Yves Minet	03/2019
7964	2^357911-20089	107742	Enzo Doria	06/2013
7965	2^357885+12857	107735	Yves Minet	07/2010
7966	(248587#+9289)/(71327111512899)	107733	Makoto Morimoto	06/2019
7967	7^127473+40	107728	Lelio R Paula	03/2017
7968	5*2^357850+9	107725	Lelio R Paula	09/2014
7969	2^357786-291191	107705	Enzo Doria	06/2015
7970	28907^5320+5320^28907	107705	Hans Havermann	10/2020
7971	18^85798-23	107700	Lelio R Paula	04/2017
7972	3*10^107697+61	107698	Robert Price	09/2020
7973	(14*10^107694-83)/3	107695	Robert Price	12/2018
7974	2^357688-1854269	107675	Enzo Doria	09/2015
7975	2^357671-112225	107670	Enzo Doria	06/2014
7976	34323^1370+1370^34323	107662	Hans Havermann	11/2020
7977	2^357618-21005	107654	Enzo Doria	06/2013
7978	2^357615-17505	107653	Enzo Doria	05/2013
7979	26350^12171+12171^26350	107649	Hans Havermann	11/2020
7981	(30^72871-1)/29	107638	Robert Price	12/2011
7980	Phi(72871,5#)	107638	Henri Lifchitz	12/2025
7982	25021^20026+20026^25021	107631	Hans Havermann	11/2020
7983	2^357521+1870217	107625	Enzo Doria	05/2016
7984	2^357477-1203	107612	Lelio R Paula	03/2017
7985	26008^13693+13693^26008	107583	Hans Havermann	10/2020
7986	25432^16991+16991^25432	107583	Hans Havermann	10/2020
7987	(2^357371+3726)/2	107580	Stefano Morozzi	09/2020
7988	5^153894-18	107568	Lelio R Paula	02/2017
7989	2^357324-69059	107566	Enzo Doria	11/2015
7990	467^40296+40296^467	107563	Norbert Schneider	03/2019
7991	29446^4495+4495^29446	107559	Hans Havermann	10/2020
7992	(8*10^107556-149)/3	107557	Robert Price	12/2021
7993	2^357283-869688105	107553	Lelio R Paula	01/2017
7994	2^357280-16805	107552	Enzo Doria	05/2013
7995	10^107547+481719	107548	Patrick De Geest	03/2017
7996	10^107547-47	107547	Lelio R Paula	02/2017
7997	(23*10^107540+37)/3	107541	Robert Price	02/2022
7998	17^87396-32	107537	Lelio R Paula	04/2017
7999	(746*10^107505+1)/9	107507	Robert Price	03/2020
8000	(2^357125+1730)/2	107506	Stefano Morozzi	09/2020

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