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 ?
7001	(30^78857-1)/29	116480	Robert Price	12/2011
7002	(2^386903-3)/5	116469	Lelio R Paula	03/2014
7003	28107^13892+13892^28107	116441	Hans Havermann	02/2021
7004	29110^9957+9957^29110	116386	Hans Havermann	02/2021
7005	26469^24838+24838^26469	116335	Hans Havermann	01/2021
7006	2^386389-1864783	116315	Enzo Doria	03/2016
7007	993^38799+992	116279	Alfred Reich	03/2026
7008	(8*32^77250-163)/31	116273	Eric Chen	11/2023
7009	(31*2^386231-1)/1711	116266	Lelio R Paula	03/2014
7010	297^47012+47012^297	116250	Norbert Schneider	07/2018
7011	(35*10^116223-341)/9	116224	Robert Price	08/2021
7012	(2^386087-5)/40959	116220	Lelio R Paula	03/2014
7013	(2^386054+714)/2	116214	Stefano Morozzi	09/2020
7014	(10^116201+7)/39623	116197	Alfred Reich	06/2021
7015	2^385969-823	116189	Yves Minet	05/2012
7016	57^66162+2	116173	Lelio R Paula	08/2013
7017	2^385854+75049	116154	Enzo Doria	04/2016
7018	(2^385832+2590)/2	116147	Stefano Morozzi	09/2020
7019	2^385775-109587	116130	Enzo Doria	04/2014
7020	(14*10^116112-101)/3	116113	Robert Price	02/2019
7021	Phi(236354,10)/24817171	116109	Makoto Kamada	08/2019
7022	3*10^116107+23	116108	Robert Price	03/2022
7023	28729^10990+10990^28729	116094	Hans Havermann	02/2021
7024	2^385622+71839	116084	Enzo Doria	04/2016
7026	2^385564+781	116067	Lelio R Paula	01/2012
7025	(2^385565+1562)/2	116067	Stefano Morozzi	09/2020
7027	(2^385563+378)/2	116066	Stefano Morozzi	02/2021
7028	(2^385557+2214)/2	116064	Stefano Morozzi	09/2020
7029	29431^8776+8776^29431	116056	Hans Havermann	01/2021
7030	(266*10^116024-17)/3	116026	Robert Price	07/2020
7031	30263^6820+6820^30263	116022	Hans Havermann	02/2021
7032	2^385410+71893	116020	Enzo Doria	04/2016
7033	38225^1084+1084^38225	116014	Hans Havermann	02/2021
7034	26548^23433+23433^26548	116011	Hans Havermann	02/2021
7035	Phi(183801,-9)	115960	Henri Lifchitz	12/2025
7036	12^107422-11	115928	Riley Fisher	12/2023
7037	(25*2^385091+1)/27	115924	Lelio R Paula	04/2014
7038	(11*10^115910-131)/3	115911	Robert Price	09/2018
7039	2^384953-111943	115883	Paul Bourdelais	02/2012
7040	43^70942-2	115882	Lelio R Paula	04/2014
7041	(94*10^115879-7)/3	115881	Robert Price	03/2020
7042	7*10^115863+3	115864	Robert Price	08/2015
7043	2^384834+93	115847	Donovan Johnson	07/2008
7044	2^384809+71297	115840	Enzo Doria	04/2016
7045	(55*10^115829+323)/9	115830	Robert Price	10/2021
7046	(7*2^384759-1)/5	115825	Lelio R Paula	04/2014
7047	31348^4951+4951^31348	115822	Hans Havermann	02/2021
7048	(793*10^115810+53)/9	115812	Robert Price	01/2022
7049	(71*10^115810-17)/9	115811	Ray Chandler	08/2011
7050	(97*10^115794-1)/3	115796	Serge Batalov	12/2014
7051	31115^5266+5266^31115	115794	Hans Havermann	02/2021
7052	2*10^115784-27	115785	Robert Price	05/2018
7053	10^115773+126739	115774	Patrick De Geest	04/2018
7055	10^115773-1000000001	115773	Robert Price	03/2018
7054	10^115773-396221	115773	Patrick De Geest	04/2018
7056	(2^384582+778)/2	115771	Stefano Morozzi	09/2020
7057	30537^6178+6178^30537	115762	Hans Havermann	01/2021
7058	2^384530+1874305	115756	Enzo Doria	06/2016
7059	(3*2^384524-1)/7631	115750	Lelio R Paula	03/2014
7060	28275^12406+12406^28275	115748	Hans Havermann	01/2021
7061	(44*10^115697-413)/9	115698	Robert Price	03/2019
7062	31408^4825+4825^31408	115692	Hans Havermann	02/2021
7063	(2^384317+1026)/2	115691	Stefano Morozzi	09/2020
7064	2^384312+81091	115690	Yves Minet	02/2010
7065	(2^384265+2150)/2	115675	Stefano Morozzi	09/2020
7066	(2^384246+2182)/2	115670	Stefano Morozzi	09/2020
7067	(4*10^115668-79)/3	115669	Robert Price	02/2018
7068	(2^384193+242)/2	115654	Stefano Morozzi	09/2020
7069	994^38584+993	115652	Alfred Reich	03/2026
7070	(266947#+1267)/(7^2*181)	115647	Makoto Morimoto	06/2019
7071	(266947#+273808)/(2109157)	115646	Makoto Morimoto	10/2017
7072	18^92125-92125^18	115642	Dylan Delgado	08/2019
7073	(25^82723+3^82723)/28	115641	Robert Price	09/2025
7074	3^242337-4042	115625	Enzo Doria	05/2014
7075	(17699*31^77516-29)/30	115608	Eric Chen	05/2024
7076	(2^383931+674)/2	115575	Stefano Morozzi	09/2020
7077	7*10^115561+79	115562	Robert Price	07/2019
7078	(2^383872+3046)/2	115557	Stefano Morozzi	09/2020
7079	(11*2^383859-13)/15	115553	Renaud Lifchitz	03/2011
7080	2^383780-3149	115530	Yves Minet	10/2014
7081	(41*10^115523-383)/9	115524	Robert Price	11/2018
7082	27316^16923+16923^27316	115506	Hans Havermann	02/2021
7083	(2^383618+618)/2	115481	Stefano Morozzi	09/2020
7084	2^383560-455	115464	Yves Minet	03/2012
7085	(2^383544+5)/3	115458	Lelio R Paula	03/2014
7086	(22*10^115454+119)/3	115455	Robert Price	04/2021
7087	89^59221-88^59221	115445	Robert Price	06/2015
7088	(7^136559-5^136559)/2	115406	Jon Grantham	08/2023
7089	2^383347+1869413	115399	Enzo Doria	05/2016
7090	(103*10^115366+17)/3	115368	Robert Price	08/2020
7091	(2^383232+750)/2	115365	Stefano Morozzi	09/2020
7092	(2^383130-7)/131793	115329	Lelio R Paula	03/2014
7093	(12^106859+1)/13	115320	Paul Bourdelais	02/2010
7094	29961^7060+7060^29961	115315	Hans Havermann	01/2021
7096	2^383039+1869509	115307	Enzo Doria	05/2016
7095	32918^3183+3183^32918	115307	Hans Havermann	01/2021
7097	(109^56597-1)/90183471012	115302	Paul Vanderveen	06/2025
7098	36964^1315+1315^36964	115288	Hans Havermann	02/2021
7099	(13*2^382968+1)/7	115286	Lelio R Paula	04/2014
7100	(22*10^115282+29)/3	115283	Robert Price	02/2021
7101	(2^382945+2046)/2	115278	Stefano Morozzi	09/2020
7102	(2^382789+3182)/2	115231	Stefano Morozzi	09/2020
7103	30416^6141+6141^30416	115224	Hans Havermann	02/2021
7104	6*10^115211+79	115212	Robert Price	09/2020
7105	(2^382722+3598)/2	115211	Stefano Morozzi	09/2020
7106	27987^13078+13078^27987	115210	Hans Havermann	02/2021
7107	(2^382699+2090)/2	115204	Stefano Morozzi	09/2020
7108	(22*10^115188-193)/9	115189	Robert Price	07/2022
7109	2^382633+73697	115185	Enzo Doria	04/2016
7110	2^382509-113593	115147	Enzo Doria	08/2014
7111	2^382502-2791721	115145	Enzo Doria	03/2016
7112	(2^382495+1274)/2	115143	Stefano Morozzi	01/2021
7113	2^382464+22741	115134	Enzo Doria	09/2023
7114	26752^20065+20065^26752	115099	Hans Havermann	02/2021
7115	26383^23008+23008^26383	115080	Hans Havermann	02/2021
7116	9^120590-120590	115073	Robert Price	03/2014
7117	28203^12016+12016^28203	115062	Hans Havermann	02/2021
7118	2^382198+9	115054	Lelio R Paula	03/2013
7119	18268*31^77131+22839	115035	Eric Chen	05/2024
7120	30101^6630+6630^30101	115032	Hans Havermann	01/2021
7121	(89*10^115030-179)/9	115031	Robert Price	12/2019
7122	25554^26089-26089^25554	114987	Frank Doornink	02/2024
7123	25142^26129-26129^25142	114979	Frank Doornink	12/2023
7124	(2^381935+2774)/2	114974	Stefano Morozzi	02/2021
7125	27300^16271+16271^27300	114972	Hans Havermann	02/2021
7126	(23*10^114962+7)/3	114963	Robert Price	05/2023
7127	2^381883-59197	114959	Enzo Doria	10/2015
7128	27423^15542+15542^27423	114944	Hans Havermann	02/2021
7129	(2^381820+1626)/2	114939	Stefano Morozzi	09/2020
7131	2^381806-4481	114936	Yves Minet	07/2011
7130	2^381808-1851507	114936	Enzo Doria	08/2015
7132	(2^381792+2502)/2	114931	Stefano Morozzi	09/2020
7133	2^381774-112373	114926	Enzo Doria	06/2014
7134	26341^22980+22980^26341	114883	Hans Havermann	01/2021
7135	(79^60539-1)/61747564999146	114867	Paul Vanderveen	05/2025
7136	2^381555-109051	114860	Enzo Doria	04/2014
7137	2^381551+213683	114859	Enzo Doria	09/2023
7138	2^381546-113501	114857	Enzo Doria	08/2014
7139	(7*10^114845-19)/3	114846	Robert Price	10/2020
7140	26675^20178+20178^26675	114833	Hans Havermann	02/2021
7141	(2^381436+1182)/2	114824	Stefano Morozzi	09/2020
7142	3^240644+16	114817	Robert Price	04/2020
7143	(13^114814)%(10^114814)	114814	Henri Lifchitz	05/2025
7144	2^381360-110429	114801	Enzo Doria	05/2014
7145	(17*10^114795+79)/3	114796	Robert Price	04/2019
7146	(66^63079+1)/67	114774	Paul Bourdelais	09/2017
7147	2^381252-115079	114769	Enzo Doria	06/2015
7148	(2^381251+3186)/2	114768	Stefano Morozzi	09/2020
7149	2^381209-29323	114756	Enzo Doria	07/2015
7150	2^381207-111546435	114755	Paul Bourdelais	10/2021
7151	569^41651-568^41651	114754	Jean-Louis Charton	11/2009
7152	2^381201+1873205	114753	Enzo Doria	06/2016
7154	(85*10^114737+293)/9	114738	Robert Price	12/2019
7155	(265*10^114736+17)/3	114738	Robert Price	03/2020
7153	379*10^114735+9	114738	Jason Yuen	01/2025
7156	(2^381062+2170)/2	114711	Stefano Morozzi	09/2020
7157	2^380974-112991	114685	Enzo Doria	07/2014
7158	37097^1234+1234^37097	114679	Hans Havermann	02/2021
7159	(26*10^114658-119)/3	114659	Robert Price	07/2023
7160	88^58949-87	114626	Norbert Schneider	11/2015
7161	(2^380773+662)/2	114624	Stefano Morozzi	09/2020
7162	Phi(155285,10)/242674820198201	114610	Makoto Kamada	02/2024
7163	(10^155285-1)(10^2389-1)(10^13-1)*11111/(10^31057-1)/(10^11945-1)/(10^65-1)/242674820198201	114610	Anonymous	04/2025
7164	29913^6782+6782^29913	114608	Hans Havermann	02/2021
7165	(331*10^114605-7)/9	114607	Robert Price	04/2022
7166	2^380700+91	114603	Lelio R Paula	03/2013
7167	394^44151+393	114594	Alfred Reich	03/2026
7168	(2^380632+2578)/2	114582	Stefano Morozzi	09/2020
7169	7*10^114577+27	114578	Robert Price	11/2020
7171	10^114575+3^114576	114576	Mike Oakes	09/2010
7170	10^114575+66561	114576	Patrick De Geest	02/2017
7172	10^114575-581081	114575	Patrick De Geest	02/2017
7173	2^380587-115315	114569	Enzo Doria	06/2015
7174	31874^3927+3927^31874	114558	Hans Havermann	02/2021
7175	2^380513-216925	114546	Enzo Doria	05/2014
7176	2^380451-1840087	114528	Enzo Doria	06/2015
7177	(2^380426+1510)/2	114520	Stefano Morozzi	09/2020
7178	(15*2^380388-1)/539	114507	Lelio R Paula	04/2014
7179	2^380279-461347	114476	Enzo Doria	07/2015
7180	(331*10^114454-7)/9	114456	Robert Price	04/2022
7181	27121^16590+16590^27121	114447	Hans Havermann	01/2021
7182	25966^25555+25555^25966	114445	Hans Havermann	01/2021
7183	(611*32^76029-53)/31	114437	Eric Chen	11/2023
7184	(11*10^114400+529)/9	114401	Robert Price	09/2021
7185	2^380021+1871147	114398	Enzo Doria	05/2016
7186	2^380005+1869707	114393	Enzo Doria	05/2016
7187	2^379958-113297	114379	Enzo Doria	07/2014
7188	(2^379897+1274)/2	114361	Stefano Morozzi	01/2021
7189	2^379881-109105	114356	Enzo Doria	04/2014
7190	(21*2^379857-1)/13	114349	Lelio R Paula	03/2014
7191	(4*10^114340+83)/3	114341	Robert Price	02/2018
7192	(26*10^114317-77)/3	114318	Robert Price	11/2019
7193	(4*10^114296+149)/9	114296	Robert Price	04/2018
7194	88^58773-87	114284	Norbert Schneider	11/2015
7195	27764^13065+13065^27764	114280	Hans Havermann	01/2021
7196	(132^53891-1)/131	114278	Anonymous	06/2024
7197	2^379529-2790283	114250	Enzo Doria	03/2016
7198	2^379522+1869115	114248	Enzo Doria	05/2016
7199	(145*10^114226-1)/9	114228	Serge Batalov	12/2014
7200	2^379317-115033	114186	Enzo Doria	06/2015
7201	(22*10^114178+47)/3	114179	Robert Price	06/2021
7202	(17*2^379246-1)/17407	114162	Lelio R Paula	03/2014
7203	(2^379192+226)/2	114148	Stefano Morozzi	09/2020
7204	(228^48407-1)/227	114139	Alexander Zhirkov	03/2023
7205	6*10^114091+23	114092	Robert Price	09/2020
7206	(4*10^114076+143)/3	114077	Robert Price	03/2018
7207	332*25^81584+12357	114053	Eric Chen	10/2023
7208	(2^378820+3226)/2	114036	Stefano Morozzi	01/2021
7209	(2^378754+2058)/2	114017	Stefano Morozzi	09/2020
7210	13643^27572-27572^13643	114008	Norbert Schneider	12/2022
7212	(46*10^113969+683)/9	113970	Robert Price	03/2019
7211	(83*10^113969+133)/9	113970	Robert Price	08/2021
7213	32226^3439+3439^32226	113966	Hans Havermann	02/2021
7214	(77*10^113963-149)/9	113964	Robert Price	03/2022
7215	78*10^113954-7	113956	Robert Price	10/2020
7216	2*10^113941+9	113942	Dmitry Domanov	11/2010
7217	10^113933+145897	113934	Patrick De Geest	02/2021
7220	(2^378478+1642)/2	113933	Stefano Morozzi	09/2020
7218	10^113933-8000000001	113933	Robert Price	11/2020
7219	10^113933-66167	113933	Patrick De Geest	02/2021
7221	2339662057597*10^113903+9	113916	Robert Price	03/2021
7223	4*10^113905+91	113906	Robert Price	08/2018
7222	Phi(256695,7)	113906	Henri Lifchitz	02/2026
7224	10^113894+76609	113895	Patrick De Geest	02/2021
7226	10^113894-10000001	113894	Robert Price	09/2020
7225	10^113894-373947	113894	Patrick De Geest	02/2021
7227	33933^2270+2270^33933	113881	Hans Havermann	02/2021
7228	4*10^113874-21	113875	Robert Price	09/2018
7229	2^378272-16565	113872	Enzo Doria	04/2013
7230	2^378217-109075	113855	Enzo Doria	04/2014
7231	2^378198+67	113849	Lelio R Paula	03/2013
7232	2^378173-3249	113842	Yves Minet	12/2014
7233	(2^378155-5)/6597	113833	Lelio R Paula	03/2014
7234	2^378137+1334025	113831	Henri Lifchitz	10/2024
7235	92941#+(355049#)/(92941#)	113830	Makoto Morimoto	10/2017
7236	30030^6173+6173^30030	113829	Hans Havermann	01/2021
7237	2^378128-262977	113828	Enzo Doria	05/2014
7238	2^378123-113215	113827	Enzo Doria	07/2014
7239	6^146274-18893	113824	Enzo Doria	03/2013
7240	34596^1949+1949^34596	113815	Hans Havermann	02/2021
7241	2^378078+75	113813	Lelio R Paula	03/2013
7242	(28*10^113810+449)/9	113811	Robert Price	11/2021
7243	26273^21448+21448^26273	113799	Hans Havermann	02/2021
7244	2^377966+255255	113780	Paul Bourdelais	10/2021
7245	2^377940+63	113772	Lelio R Paula	03/2013
7246	2^377941-2785843	113772	Enzo Doria	04/2016
7247	(7*10^113757+11)/9	113757	Tyler Busby	01/2023
7248	2^377810+1875109	113733	Enzo Doria	09/2016
7249	2^377803-1838635	113731	Enzo Doria	05/2015
7250	2^377799+52223	113729	Yves Minet	08/2010

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Probable Primes Top 10000

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