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 ?
6251	15^67352+38	79213	Lelio R Paula	02/2015
6252	2^263135-110235	79212	Enzo Doria	05/2014
6253	2^263044+4257	79185	Lelio R Paula	07/2013
6255	2^263032+87517	79181	Yves Minet	11/2010
6254	6^101755+95	79181	Lelio R Paula	03/2015
6256	4^131497-3^131497	79170	Jean-Louis Charton	05/2004
6257	5*7^93674+8	79165	Lelio R Paula	10/2014
6258	lucasU(486,25,29457)-5*lucasU(486,25,29456)	79137	Mike Oakes	05/2009
6259	260^32768+179^32768	79134	Serge Batalov	03/2018
6260	11^75978-42	79123	Lelio R Paula	02/2015
6261	8*5^113180+9	79111	Lelio R Paula	10/2014
6262	(6883*2^262741-1)/4835	79094	Lelio R Paula	04/2015
6263	(9*2^262745+1)/137	79093	Lelio R Paula	10/2012
6264	12^73285+85	79088	Lelio R Paula	02/2015
6265	19^61840+52	79079	Lelio R Paula	03/2015
6266	(10^79067+77)/3	79067	Robert Price	01/2017
6267	(1017*2^262640-1)/11557	79062	Lelio R Paula	04/2015
6268	10^79040+137949	79041	Patrick De Geest	02/2016
6270	10^79040-1007297	79040	Robert Price	02/2015
6269	10^79040-77427	79040	Patrick De Geest	02/2016
6271	2^262551-17295	79036	Lelio R Paula	07/2013
6272	3^165597+340	79010	Lelio R Paula	02/2015
6273	(23*2^262435+1)/55	79001	Lelio R Paula	10/2012
6274	11^75860-2100	79001	Enzo Doria	12/2012
6275	8*7^93463+9	78987	Lelio R Paula	10/2014
6276	67^43240-2	78960	Lelio R Paula	09/2013
6277	1000001^13159-1000000^13159	78953	Jean-Louis Charton	10/2003
6278	2^262199-110287	78930	Enzo Doria	05/2014
6279	(19*2^262180-1)/177	78924	Lelio R Paula	02/2014
6280	(3^165403+4)/7	78917	Lelio R Paula	10/2012
6282	2^21068*(2^241076+1)-1	78914	Makoto Morimoto	03/2014
6283	2^29258*(2^232886+1)-1	78914	Makoto Morimoto	03/2014
6281	2^262144+18531	78914	Makoto Morimoto	12/2015
6284	(2^(2^18)+2450)/(23^2137*577)	78908	Makoto Morimoto	08/2017
6285	(2^(2^18)-5719)/(35993623)	78907	Makoto Morimoto	08/2017
6286	14^68837+75	78897	Lelio R Paula	02/2015
6287	106^38949+105	78884	Norbert Schneider	12/2016
6288	(70^42737+1)/71	78853	Paul Bourdelais	08/2017
6289	(25*2^261917-1)/20927	78842	Lelio R Paula	02/2014
6290	2^261881-1859713	78835	Enzo Doria	03/2016
6291	2^261874+1915	78832	Lelio R Paula	07/2013
6292	2^261856+98765331	78827	Jason Earls	01/2009
6293	(5*2^261857-1)/20501277	78821	Lelio R Paula	02/2014
6294	2^261724+92691	78787	Tony Prest / Never Odd Or Even	03/2014
6295	2^261724+285111	78787	Tony Prest / Never Odd Or Even	04/2014
6296	2^261724+293713	78787	Tony Prest / Never Odd Or Even	04/2014
6297	(2^261724+381949)/5	78787	Tony Prest / Never Odd Or Even	04/2014
6298	2^261724+572971	78787	Tony Prest / Never Odd Or Even	05/2014
6299	(2^261724+392705)/3/7	78786	Tony Prest / Never Odd Or Even	04/2014
6300	(2^261724+629709)/5/5	78786	Tony Prest / Never Odd Or Even	05/2014
6301	(2^261724+67397)/3/103	78785	Tony Prest / Never Odd Or Even	04/2014
6302	(2^261724+323043)/11/103	78784	Tony Prest / Never Odd Or Even	04/2014
6303	(2^261724+370143)/1289	78784	Tony Prest / Never Odd Or Even	04/2014
6304	(2^261724+560259)/5/5/73	78784	Tony Prest / Never Odd Or Even	05/2014
6305	(2^261724+64109)/3/3/3/5/5/19	78783	Tony Prest / Never Odd Or Even	04/2014
6306	(2^261724+394491)/55787	78783	Tony Prest / Never Odd Or Even	04/2014
6307	(2^261724+625897)/23/883	78783	Tony Prest / Never Odd Or Even	05/2014
6308	(2^261724+292471)/13/97/151	78782	Tony Prest / Never Odd Or Even	04/2014
6309	(2^261724+154303)/11/67/127	78782	Tony Prest / Never Odd Or Even	04/2014
6310	(2^261724+313319)/3/3/3/3/5/11/113	78782	Tony Prest / Never Odd Or Even	04/2014
6311	(2^261724+383949)/5/41/43/83	78781	Tony Prest / Never Odd Or Even	04/2014
6312	(2^261724+626567)/3/331/631	78781	Tony Prest / Never Odd Or Even	05/2014
6313	(2^261724+32987)/3/3/19/223/1031	78780	Tony Prest / Never Odd Or Even	04/2014
6314	(2^261724+5813)/3/5991397	78780	Tony Prest / Never Odd Or Even	04/2014
6315	(2^261724+13481)/3/11/239/2087	78780	Tony Prest / Never Odd Or Even	04/2014
6316	(2^261724+103399)/5/13/37/10607	78780	Tony Prest / Never Odd Or Even	04/2014
6317	(2^261724+18477)/367/65111	78780	Tony Prest / Never Odd Or Even	04/2014
6318	(2^261724+121285)/167/227/1217	78780	Tony Prest / Never Odd Or Even	04/2014
6319	(2^261724+262037)/3/3/11/23/18517	78780	Tony Prest / Never Odd Or Even	04/2014
6320	(2^261724+586157)/3/7/457/1259	78780	Tony Prest / Never Odd Or Even	05/2014
6321	(2^261724+315287)/3/45822541	78779	Tony Prest / Never Odd Or Even	04/2014
6322	(2^261724+605675)/3/3/3/103/207481	78779	Tony Prest / Never Odd Or Even	05/2014
6323	(2^261724+60031)/13/31/7024877	78778	Tony Prest / Never Odd Or Even	04/2014
6324	(2^261724+121879)/5/789433217	78778	Tony Prest / Never Odd Or Even	04/2014
6325	(2^261724+290135)/3/3/8467/9059	78778	Tony Prest / Never Odd Or Even	04/2014
6326	(2^261724+79857)/59/3847/165331	78777	Tony Prest / Never Odd Or Even	04/2014
6327	(2^261724+22883)/3/17/23/2351/10079	78777	Tony Prest / Never Odd Or Even	04/2014
6328	(2^261724+154799)/3/5/3655653719	78777	Tony Prest / Never Odd Or Even	04/2014
6329	(2^261724+391001)/3/11/17/41/43/24071	78777	Tony Prest / Never Odd Or Even	04/2014
6330	(2^261724+622383)/34843/550717	78777	Tony Prest / Never Odd Or Even	05/2014
6331	(2^261724+302829)/5/37/37/37078147	78776	Tony Prest / Never Odd Or Even	04/2014
6332	(2^261724+315837)/43/2176136243	78776	Tony Prest / Never Odd Or Even	04/2014
6333	(2^261724+582373)/53/307/311/32117	78776	Tony Prest / Never Odd Or Even	05/2014
6334	(2^261724+295283)/3/3/3/29/43/17812273	78775	Tony Prest / Never Odd Or Even	04/2014
6335	(2^261724+27491)/3/22787/105978449	78774	Tony Prest / Never Odd Or Even	04/2014
6336	(2^261724+392751)/193813/287826689	78774	Tony Prest / Never Odd Or Even	04/2014
6337	(2^261724+328501)/7/1091/31495610519	78773	Tony Prest / Never Odd Or Even	04/2014
6338	(2^261724+111267)/19/4637/15140560427	78772	Tony Prest / Never Odd Or Even	04/2014
6339	(2^261724+572133)/127/131/73787752333	78772	Tony Prest / Never Odd Or Even	05/2014
6340	(2^261724+608733)/59/7079/18451/909151	78771	Tony Prest / Never Odd Or Even	05/2014
6341	(2^261724+255449)/3/3/5/7/1759/10177/33158869	78770	Tony Prest / Never Odd Or Even	04/2014
6342	(2^261724+99509)/3/5/5/6507271/6749659289	78769	Tony Prest / Never Odd Or Even	04/2014
6343	(2^261724+52501)/563/53939/27942831391	78769	Tony Prest / Never Odd Or Even	04/2014
6344	(2^261724+117089)/3/5/37/149/967/2027/4163741	78769	Tony Prest / Never Odd Or Even	04/2014
6345	(2^261724+372571)/1487/9209/21559/2263249	78769	Tony Prest / Never Odd Or Even	04/2014
6346	(2^261724+184549)/5/8699/44053/1409322997	78769	Tony Prest / Never Odd Or Even	04/2014
6347	(2^261724+363351)/937/159683/59523200227	78768	Tony Prest / Never Odd Or Even	04/2014
6348	(2^261724+326501)/3/43/193/263/19403/253501403	78768	Tony Prest / Never Odd Or Even	04/2014
6349	(2^261724+629477)/3/17/17/137/263/1993/16187/57347	78768	Tony Prest / Never Odd Or Even	05/2014
6350	(2^261724+94871)/3/3/13/6734017/1673425245787	78766	Tony Prest / Never Odd Or Even	04/2014
6351	(2^261724+25981)/577/1181/3643/517786334743	78766	Tony Prest / Never Odd Or Even	04/2014
6353	(23*2^261642+1)/93	78762	Lelio R Paula	10/2012
6352	(2^261724+351227)/3/3/3/3/71/13997/9595373/8193978007	78762	Tony Prest / Never Odd Or Even	04/2014
6354	(2^261724+22571)/3/7243/7321/18046081/45730741211	78761	Tony Prest / Never Odd Or Even	04/2014
6355	(2^261724+56495)/3/3/3/7/7/13/9041/512818459/23708589119	78760	Tony Prest / Never Odd Or Even	04/2014
6356	(2^261724+604119)/5/7/7/41/14107/19681/211777/90145981/1036020834127	78750	Tony Prest / Never Odd Or Even	05/2014
6357	2^261507-2287	78722	Yves Minet	04/2009
6358	8*10^78717+39	78718	Robert Price	01/2017
6359	(78557*2^261440+1)/3	78706	Lelio R Paula	06/2014
6360	6^101128-16433	78693	Enzo Doria	02/2013
6361	20^60482+99	78689	Lelio R Paula	03/2015
6362	2^261348-110633	78674	Enzo Doria	05/2014
6363	191^34487+2	78666	Lelio R Paula	05/2013
6364	2^261305-110139	78661	Enzo Doria	04/2014
6365	(82*10^78635-1)/9	78636	Robert Price	12/2014
6366	10^78632+81	78633	Robert Price	03/2011
6367	10^78632-402693	78632	Patrick De Geest	07/2013
6368	3*10^78631+17	78632	Robert Price	03/2017
6369	2^261174-3911	78622	Yves Minet	04/2017
6370	2^261167+74843	78620	Enzo Doria	04/2016
6371	L(376121)+F(376122)	78605	Henri Lifchitz	01/2007
6372	14^68580-29	78602	Lelio R Paula	02/2015
6373	(73*10^78576-1)/9	78577	Robert Price	01/2015
6374	(17*2^261026-1)/40451	78574	Lelio R Paula	02/2014
6375	2^261001-195	78570	Lelio R Paula	05/2012
6376	5*2^260950+9	78555	Lelio R Paula	06/2014
6377	2^260931-7605	78549	Lelio R Paula	07/2013
6378	15^66778-32	78538	Lelio R Paula	02/2015
6379	(11*2^260896-1)/245	78537	Lelio R Paula	02/2014
6380	30^53166+29	78533	Norbert Schneider	03/2017
6381	lucasU(2403,1,23229)-lucasU(2403,1,23228)	78529	Mike Oakes	05/2009
6382	7*3^164574-2	78523	Lelio R Paula	06/2014
6383	2^260830-112133	78518	Enzo Doria	06/2014
6384	13^70486+42	78518	Lelio R Paula	03/2015
6385	11^75386-7080	78507	Enzo Doria	01/2013
6386	(86^40583-1)/85	78506	Paul Bourdelais	08/2017
6387	5*10^78504+11	78505	Robert Price	08/2019
6388	2^260711-58695	78482	Lelio R Paula	07/2013
6389	2^260678-111065	78472	Enzo Doria	05/2014
6390	18^62501-97	78456	Lelio R Paula	02/2015
6391	53^45498-2	78452	Lelio R Paula	08/2013
6392	2^260513-111121	78423	Enzo Doria	05/2014
6393	37845!2-64	78412	Robert Price	06/2015
6394	2^260469-110695	78409	Enzo Doria	05/2014
6395	(11*10^78408-113)/3	78409	Robert Price	01/2017
6396	2^260447+8415	78403	Lelio R Paula	07/2013
6397	37837!2-64	78394	Robert Price	06/2015
6398	(19*2^260379-1)/53	78382	Lelio R Paula	02/2014
6399	2^260377-113233	78382	Enzo Doria	07/2014
6400	9^82138+6^82138-2^82138	78380	Mike Oakes	08/2010
6401	69^42624+2	78380	Lelio R Paula	05/2013
6402	2^260369-1859713	78379	Enzo Doria	03/2016
6403	14*10^78362+1089	78364	Jens K. Andersen	11/2007
6404	5^112070-54	78334	Lelio R Paula	02/2015
6405	(10^(239165+1)+5410^39165-1)/9	78331	Robert Price	04/2017
6406	2^260182-113453	78323	Enzo Doria	07/2014
6407	f(16405)	78319	Robert Price	09/2017
6408	(78557*2^260084+1)/519	78296	Lelio R Paula	06/2014
6409	10^78288+9^(78288+1)	78289	Robert Price	08/2016
6410	10^78288+39109	78289	Patrick De Geest	12/2016
6411	10^78288-216299	78288	Patrick De Geest	12/2016
6412	5^111997+36	78283	Lelio R Paula	02/2015
6413	(21^59183+1)/22	78252	Paul Bourdelais	03/2010
6414	(88*10^78242-7)/9	78243	Robert Price	11/2014
6415	2*6^100547+7	78242	Lelio R Paula	10/2014
6416	2^259860-111089	78226	Enzo Doria	05/2014
6417	37^49875-2	78215	Lelio R Paula	09/2013
6418	(13*10^78213+401)/9	78214	Robert Price	10/2017
6419	7*5^111893-4	78211	Lelio R Paula	10/2014
6420	(11*2^259809-1)/1437	78209	Lelio R Paula	02/2014
6421	7^92511-6	78181	Theodore Burton	11/2005
6422	(3^163859-4)/253	78179	Lelio R Paula	10/2012
6423	(27*2^259666-1)/625691	78163	Lelio R Paula	02/2014
6424	3*10^78146+17	78147	Robert Price	03/2017
6425	(576^28307+1)/577	78137	Richard Fischer	01/2018
6426	2^259503+74333	78119	Enzo Doria	04/2016
6427	(31*2^259504-1)/13365	78116	Lelio R Paula	02/2014
6429	(58547^16384+1)/2	78111	Lelio R Paula	11/2011
6428	6^100379+13	78111	Lelio R Paula	03/2015
6430	2^259469-109909	78108	Enzo Doria	04/2014
6431	15^66413-26	78108	Lelio R Paula	02/2015
6432	7^92410-9266	78096	Mike Oakes	02/2010
6433	2^259398+75799	78087	Enzo Doria	04/2016
6434	2^259394+1876189	78086	Enzo Doria	07/2016
6435	PIPrime(78073)	78073	Eric W. Weisstein	07/2006
6436	5*2^259344-7	78072	Lelio R Paula	06/2014
6437	14^68097-87	78048	Lelio R Paula	02/2015
6438	2^259233-475573	78037	Paul Bourdelais	03/2013
6439	181^34554-2	78012	Lelio R Paula	10/2017
6440	3^163500-28	78010	Robert Price	12/2013
6441	(65*10^77992+691)/9	77993	Robert Price	08/2016
6442	2^259013-112591	77971	Enzo Doria	06/2014
6443	7*10^77969-11	77970	Robert Price	10/2017
6444	6^100193-100193^6	77966	Norbert Schneider	04/2017
6445	2^258863-110235	77926	Enzo Doria	05/2014
6446	2^258852+1605	77923	Lelio R Paula	06/2013
6447	(11*10^77909+49)/3	77910	Robert Price	05/2016
6448	2*7^92187-9	77908	Lelio R Paula	10/2014
6449	2^258763-110155	77896	Enzo Doria	04/2014
6450	2^258694-110387	77875	Enzo Doria	05/2014
6451	11^74773-94	77869	Lelio R Paula	02/2015
6452	6^100067+125	77868	Lelio R Paula	03/2015
6453	15^66205+8	77864	Lelio R Paula	07/2014
6454	5^111373-18136	77847	Enzo Doria	05/2014
6455	2^258524-109877	77824	Enzo Doria	04/2014
6456	6^100002-16643	77817	Enzo Doria	02/2013
6457	(13*10^77811+347)/9	77812	Robert Price	10/2017
6458	65^42916+28	77803	Lelio R Paula	01/2016
6459	(89*10^77781-17)/9	77782	Robert Price	11/2015
6460	2^258382-110405	77781	Enzo Doria	05/2014
6461	5^111278-14996	77780	Enzo Doria	02/2013
6462	14^67862+61	77779	Lelio R Paula	02/2015
6463	10^77777+48483	77778	Patrick De Geest	11/2010
6464	10^77777-183243	77777	Patrick De Geest	11/2010
6465	(27*2^258352+1)/43	77772	Lelio R Paula	08/2012
6466	337^30756-10002	77740	Enzo Doria	07/2012
6467	10^77726+99	77727	Robert Price	03/2011
6468	10^77726-85947	77726	Patrick De Geest	06/2013
6469	89^39870-2	77723	Lelio R Paula	08/2013
6470	7^91966-32	77721	Lelio R Paula	02/2015
6471	35^50327+2	77709	Lelio R Paula	05/2013
6472	24^56298+23	77704	Norbert Schneider	12/2016
6473	(2^258105+78557)/19	77697	Lelio R Paula	10/2012
6474	2^258079+179	77690	Lelio R Paula	03/2012
6475	2^258062-113111	77685	Enzo Doria	07/2014
6476	80^40807-79	77660	Norbert Schneider	03/2015
6477	(10^77637+359)/9	77637	Serge Batalov	12/2014
6478	2^257862-165	77625	Lelio R Paula	03/2012
6479	(25*2^257853+1)/3	77623	Lelio R Paula	07/2012
6480	(2^257869+1)/(3*18645362967379)	77613	Henri Lifchitz	04/2005
6481	6^99728+71	77604	Lelio R Paula	01/2015
6482	2^257778-112767	77599	Enzo Doria	06/2014
6483	(31*2^257771+1)/537	77596	Lelio R Paula	07/2012
6484	2^257729-73	77585	Lelio R Paula	03/2012
6485	2^257689-63	77573	Lelio R Paula	03/2012
6486	(47*10^77572+493)/9	77573	Robert Price	11/2017
6487	(78557*2^257665+1)/6108725	77564	Lelio R Paula	06/2014
6488	(3^162563+8)/2885	77559	Lelio R Paula	10/2012
6489	2^257636-110235	77557	Enzo Doria	05/2014
6490	(23*10^77556+97)/3	77557	Robert Price	02/2017
6491	2^257621-110071	77552	Enzo Doria	04/2014
6492	2^257567-64875	77536	Lelio R Paula	06/2013
6493	2*7^91674+9	77474	Lelio R Paula	10/2014
6494	(17*10^77427-47)/3	77428	Robert Price	05/2017
6495	10^77418+841683	77419	Patrick De Geest	06/2013
6496	10^77418-33	77418	Robert Price	05/2011
6497	19^60539-36	77415	Lelio R Paula	03/2015
6498	37401!!-1024	77397	Robert Price	11/2015
6499	11^74313-18750	77390	Enzo Doria	12/2012
6500	8*10^77377+51	77378	Robert Price	05/2017

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Probable Primes Top 10000

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