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 ?
8251	2^204574-16041	61583	Enzo Doria	04/2013
8252	15^52358+56	61578	Lelio R Paula	05/2013
8253	(28*10^61574+11)/3	61575	Robert Price	11/2015
8254	2^204516-17493	61566	Enzo Doria	05/2013
8255	4*5^88076-3	61564	Lelio R Paula	09/2014
8256	11^59110-2520	61557	Enzo Doria	12/2012
8257	2^204477-58695	61554	Lelio R Paula	09/2011
8258	12^57026-73	61542	Lelio R Paula	05/2013
8259	(257^25537+1)/258	61541	Richard Fischer	04/2018
8260	17^50013+90	61539	Lelio R Paula	05/2013
8261	56^35201-55^35201	61538	Robert Price	10/2013
8262	8*7^72810+5	61533	Lelio R Paula	09/2014
8264	204^26641-203^26641	61531	Jean-Louis Charton	08/2009
8263	43867!3-6561	61531	Robert Price	11/2015
8265	10^61525+9^(61525-1)	61526	Robert Price	03/2016
8266	10^61525+62257	61526	Patrick De Geest	12/2016
8267	14821^14166+14166^14821	61526	Hans Havermann	01/2017
8269	12^57010-85	61525	Lelio R Paula	05/2013
8268	10^61525-213579	61525	Patrick De Geest	12/2016
8270	2^204332-99	61511	Lelio R Paula	08/2011
8271	2^204323-2221	61508	Yves Minet	08/2013
8274	2^204317-195	61506	Lelio R Paula	08/2011
8272	3^128910-86	61506	Lelio R Paula	04/2013
8273	2^204318+74539	61506	Enzo Doria	04/2016
8275	(2^204334-3)/1141333	61505	Lelio R Paula	03/2012
8276	2^204297-1036093	61500	Paul Bourdelais	11/2012
8277	3^128880+58	61492	Lelio R Paula	04/2013
8278	2^204216-111677	61476	Enzo Doria	05/2014
8279	(F(73524)^5-F(73523)^5)/F(73522)	61462	Wayne Halsdorf	03/2012
8280	2^204129+204129	61449	Henri Lifchitz	04/2002
8281	3^128787+2^(128787-1)	61448	Robert Price	05/2016
8282	11^58999-78	61442	Lelio R Paula	05/2013
8283	2^204083-111967	61436	Enzo Doria	05/2014
8284	(45^37159+1)/46	61431	Robert Price	11/2013
8285	677^21702+21702^677	61430	Norbert Schneider	06/2016
8286	14837^13810+13810^14837	61429	Hans Havermann	02/2017
8287	(7*2^204043+1)/39	61423	Lelio R Paula	03/2012
8288	11^58976-1740	61418	Enzo Doria	11/2012
8289	2^204016-16085	61415	Enzo Doria	04/2013
8290	V(379967)	61393	Serge Batalov	03/2015
8291	43777!3-3^43777	61392	Robert Price	08/2015
8292	7^72642+88	61390	Lelio R Paula	04/2013
8293	3^128656+32	61385	Lelio R Paula	04/2013
8294	2^203916-17493	61385	Enzo Doria	05/2013
8295	6^78880+23	61381	Lelio R Paula	04/2013
8296	(388*10^61374-1)/9	61376	Robert Price	11/2017
8297	2^203877-111799	61374	Enzo Doria	05/2014
8298	2^203867-1615	61371	Lelio R Paula	10/2011
8299	4*10^61367+19	61368	Robert Price	04/2016
8300	(19*2^203854+1)/42319	61363	Lelio R Paula	08/2012
8301	L(293659)/76528122719	61361	Serge Batalov	07/2017
8302	2^203825-15805	61358	Enzo Doria	04/2013
8303	2^203816-15825	61355	Enzo Doria	04/2013
8304	5*10^61348+59	61349	Robert Price	09/2016
8305	21^46395-2	61345	Lelio R Paula	08/2013
8306	(809*29^41946-165)/28	61344	Curtis Bright	05/2015
8307	7*6^78826+5	61340	Lelio R Paula	09/2014
8308	(3^128558+7)/83773166429696	61324	Lelio R Paula	04/2012
8309	2^203706-111	61322	Lelio R Paula	08/2011
8310	17567^3094+3094^17567	61318	Hans Havermann	02/2017
8311	2^203689-31	61317	Thomas Masser	10/2005
8312	(11*2^203678-1)/53689	61310	Lelio R Paula	01/2014
8314	2^203642+39	61303	Lelio R Paula	08/2011
8313	floor(Pi*10^61382)%(10^61303)	61303	Serge Batalov	07/2012
8315	11^58849-6040	61285	Enzo Doria	02/2013
8316	43694!3-3	61264	Robert Price	10/2014
8317	58(10^(320420)-1)/111-1	61260	Robert Price	10/2014
8318	2^203490+12909	61257	Lelio R Paula	10/2011
8319	(16*10^61251-31)/3	61252	Robert Price	03/2016
8320	20^47077-5703	61249	Enzo Doria	03/2013
8321	2^203434-113081	61240	Enzo Doria	07/2014
8323	5^87606+4	61234	Wojciech Florek	11/2005
8322	2^203412-167	61234	Lelio R Paula	08/2011
8324	2^203402+1089	61231	Lelio R Paula	10/2011
8325	(8*10^61230+67)/3	61231	Robert Price	01/2017
8326	(2^203408+lucasV(1,2,203408)+1)/(2*32993)	61228	Mike Oakes	11/2016
8327	1265^19732+19732^1265	61211	Serge Batalov	05/2014
8328	2^203330+145	61209	Lelio R Paula	08/2011
8329	6^78647-137	61200	Lelio R Paula	04/2013
8330	85^31718+84	61198	Norbert Schneider	10/2015
8331	11^58763-270	61196	Enzo Doria	07/2012
8332	2^203285-112321	61195	Enzo Doria	06/2014
8333	2^203253-995143	61186	Paul Bourdelais	11/2012
8334	15319^9862+9862^15319	61184	Hans Havermann	07/2016
8335	7^72395-44	61181	Lelio R Paula	04/2013
8336	(49*10^61167-67)/9	61168	Robert Price	08/2017
8337	5*2^203176-7	61163	Lelio R Paula	04/2014
8338	(26*10^61156-413)/9	61157	Robert Price	10/2017
8339	7^72358+54	61150	Lelio R Paula	04/2013
8340	2^203133-111775	61150	Enzo Doria	05/2014
8341	(lucasV(1,2,406356)+2)/(3^251119315836979671743)	61145	Mike Oakes	01/2017
8342	2^203112-18009	61143	Enzo Doria	05/2013
8343	43607!3+729	61129	Robert Price	09/2014
8344	2^203065-114853	61129	Enzo Doria	05/2015
8345	3^128111+196	61125	Lelio R Paula	04/2013
8346	128^29007+29007^128	61124	Serge Batalov	05/2014
8347	4*10^61119+49	61120	Robert Price	08/2017
8348	22355*2^203009-3	61117	Donovan Johnson	03/2004
8349	2^203018+33	61115	Lelio R Paula	08/2011
8350	2^203017-1615	61115	Lelio R Paula	10/2011
8351	16697^4570+4570^16697	61110	Hans Havermann	12/2016
8352	2^202998-17241	61109	Enzo Doria	05/2013
8353	20^46964+93	61102	Lelio R Paula	06/2013
8354	(55*10^61097-1)/9	61098	Ray Chandler	02/2012
8355	20^46960-5463	61097	Enzo Doria	03/2013
8356	(11*10^61095+49)/3	61096	Robert Price	05/2016
8357	2^202934-5955	61090	Lelio R Paula	10/2011
8358	19^47772-68	61089	Lelio R Paula	05/2013
8359	2^202877-499423	61073	Paul Bourdelais	03/2013
8360	2^202763-17125	61038	Enzo Doria	05/2013
8361	(23*2^202756+1)/9	61037	Lelio R Paula	03/2012
8362	14788^13355+13355^14788	61011	Hans Havermann	12/2016
8363	16069^6258+6258^16069	61005	Hans Havermann	12/2016
8364	5^87276-14336	61004	Enzo Doria	02/2013
8365	50^35899-49^35899	60992	Robert Price	12/2012
8366	2^202599-3049	60989	Yves Minet	10/2014
8367	2^202535-111571	60970	Enzo Doria	05/2014
8368	(13*10^60966+107)/3	60967	Robert Price	11/2017
8370	10^60959+57	60960	Patrick De Geest	12/2008
8369	6*10^60959-91	60960	Robert Price	11/2017
8372	10^60959-60959	60959	Henri Lifchitz	08/2002
8371	10^60959-29177	60959	Patrick De Geest	08/2008
8373	5^87206+4^(87206+1)	60955	Robert Price	07/2016
8374	2^202476-15909	60952	Enzo Doria	04/2013
8375	2^202472-17513	60951	Enzo Doria	05/2013
8376	14858^12651+12651^14858	60950	Hans Havermann	12/2016
8377	2^202389-58695	60926	Lelio R Paula	09/2011
8378	3^127597-34	60880	Lelio R Paula	04/2013
8379	15088^10831+10831^15088	60876	Hans Havermann	12/2016
8380	2^202198-113261	60868	Enzo Doria	07/2014
8381	2^202182+135	60863	Lelio R Paula	08/2011
8382	2^202176+85	60862	Lelio R Paula	08/2011
8383	5183^16384+5182^16384	60860	Henri Lifchitz	01/2007
8384	(31*2^202163+1)/3	60859	Lelio R Paula	03/2012
8385	14708^13707+13707^14708	60847	Hans Havermann	12/2016
8386	2^202112+202112^2-1	60842	Robert Price	04/2014
8387	(13*2^202142-1)/405984274257	60841	Lelio R Paula	01/2014
8388	64743*10^60832+(6^78175-11)/5	60837	Gilbert Mozzo	05/2012
8389	(19*2^202098-1)/6795	60836	Lelio R Paula	01/2014
8390	(6^78175-11)/5	60832	Paul Bourdelais	11/2011
8391	2^202063+1605	60828	Lelio R Paula	09/2011
8392	2^202058+859	60826	Lelio R Paula	09/2011
8393	1576^19021+19021^1576	60821	Serge Batalov	05/2014
8394	(2^202009+3)/6005	60807	Lelio R Paula	03/2012
8395	10^60776+3	60777	Robert Price	01/2011
8396	10^60776-14819	60776	Patrick De Geest	12/2012
8397	55*10^60772+7	60774	Robert Price	10/2017
8398	(6883*2^201869-1)/35	60771	Lelio R Paula	04/2015
8399	(27*2^201841-1)/43	60760	Lelio R Paula	01/2014
8400	2^201822-177	60755	Lelio R Paula	08/2011
8401	(13*10^60744+17)/3	60745	Robert Price	06/2015
8402	(31*2^201754-1)/99	60734	Lelio R Paula	01/2014
8403	(26*10^60717-71)/9	60718	Robert Price	03/2015
8404	37^38712-2	60709	Lelio R Paula	08/2013
8405	2^201657-112003	60705	Enzo Doria	05/2014
8406	(10^60703+3^60703)/13	60702	Robert Price	01/2013
8407	2^201622-112817	60695	Enzo Doria	06/2014
8408	2^201620-17177	60694	Enzo Doria	05/2013
8409	(2^201615-3)*6-7	60693	Gilbert Mozzo	05/2016
8410	2^201609-49789	60691	Henri Lifchitz	03/2005
8411	2^201582-19061	60683	Enzo Doria	05/2013
8412	43316!3+27	60679	Robert Price	09/2014
8413	(509203*2^201564-1)/5067	60679	Lelio R Paula	04/2015
8414	2^201560+105	60676	Lelio R Paula	08/2011
8415	(27*2^201584-1)/646755486457	60673	Lelio R Paula	01/2014
8416	2^201545-18021	60672	Enzo Doria	05/2013
8417	2^201543+11715	60671	Lelio R Paula	09/2011
8418	2^201512-111755	60662	Enzo Doria	05/2014
8419	p(13013)#/2+64	60662	Robert Price	03/2017
8420	11^58248+16	60660	Lelio R Paula	05/2013
8421	2^201496-27	60657	Lelio R Paula	08/2011
8422	5*10^60655+57	60656	Robert Price	11/2017
8423	(7*10^60643+197)/3	60644	Robert Price	07/2017
8424	2^201426-16097	60636	Enzo Doria	04/2013
8425	(17*10^60631-11)/3	60632	Robert Price	07/2015
8426	6^77916-77	60631	Lelio R Paula	04/2013
8427	(27*2^201410-1)/491	60630	Lelio R Paula	01/2014
8428	5^86727+98	60620	Lelio R Paula	04/2013
8429	17^49266-26	60620	Lelio R Paula	05/2013
8430	20^46589-33	60614	Lelio R Paula	05/2013
8431	6^77889+65	60610	Lelio R Paula	04/2013
8432	139901#+148387	60595	Nicolas PALAU	09/2016
8433	2^201285-111723	60593	Enzo Doria	05/2014
8434	46199*2^201268+129647	60593	Paul Vanderveen	11/2016
8436	3^126991-100	60591	Lelio R Paula	04/2013
8435	2^201278-111623	60591	Enzo Doria	05/2014
8437	5^86682-16004	60589	Enzo Doria	05/2014
8438	(865*10^60583-1)/9	60585	Robert Price	11/2017
8439	(58*10^60579+221)/9	60580	Robert Price	02/2017
8440	9*2^201231-5	60578	Lelio R Paula	04/2014
8441	4*10^60572-89	60573	Robert Price	08/2017
8442	(78557*2^201207+1)/13067	60571	Lelio R Paula	06/2014
8443	2^201186-66945	60564	Lelio R Paula	09/2011
8444	2^201186-94395	60564	Lelio R Paula	09/2011
8445	65^33403+32	60557	Lelio R Paula	01/2016
8446	103^30079+102	60545	Norbert Schneider	10/2016
8447	(1000159^10091+1)/1000160	60541	Faysal YAtim	08/2008
8448	2^201098-17717	60537	Enzo Doria	05/2013
8449	(3^126881+8)/4829	60534	Lelio R Paula	03/2012
8450	2^201074+75049	60530	Enzo Doria	04/2016
8451	11^58111-1290	60517	Enzo Doria	11/2012
8452	(509203*2^201012-1)/9	60516	Lelio R Paula	04/2015
8453	14447^14544-14544^14447	60500	Norbert Schneider	12/2018
8454	2^200911+5711	60481	Lelio R Paula	10/2011
8455	(2^200912-3)/23	60480	Lelio R Paula	03/2012
8456	18^48179-17^48179	60478	Jean-Louis Charton	12/2010
8457	38^38281-37^38281	60476	Robert Price	09/2012
8458	4*7^71560-3	60476	Lelio R Paula	09/2014
8459	(10^(230232+1)+1510^30232-1)/3	60465	Robert Price	04/2016
8460	lucasV(1,2,401712)+2	60464	Mike Oakes	01/2017
8461	2^200833-18493	60457	Enzo Doria	05/2013
8462	20^46465-5043	60453	Enzo Doria	03/2013
8463	2^200810-18257	60450	Enzo Doria	05/2013
8464	((2)^(2*100400-1)+(2)^(100400-1)+1)+26672	60447	Faysal YAtim	04/2018
8465	5^86466-14336	60438	Enzo Doria	02/2013
8466	Phi(145558,10)/103928413/161714939/14779231531/36075385837/242411419853	60432	Maksym Voznyy	10/2011
8467	(29*2^200703-1)/231	60417	Lelio R Paula	01/2014
8468	2^200682-1016831	60412	Paul Bourdelais	11/2012
8469	2^200617-17881	60392	Enzo Doria	05/2013
8470	(25^43201+1)/26	60391	Robert Price	06/2013
8472	2^200609-133	60390	Lelio R Paula	08/2011
8471	2^200608-12837	60390	Enzo Doria	10/2012
8473	2^200607-17121	60389	Enzo Doria	05/2013
8474	11^57975-1620	60375	Enzo Doria	11/2012
8475	(9913*2^200538-1)/3801	60369	Lelio R Paula	04/2015
8476	5^86342+64	60351	Lelio R Paula	04/2013
8477	(14*10^60346-23)/9	60347	Robert Price	04/2015
8478	2^200457-8295	60344	Lelio R Paula	09/2011
8479	6^77546+113	60343	Lelio R Paula	04/2013
8481	37^38461-36^38461	60315	Robert Price	06/2012
8480	2^200361-17593	60315	Enzo Doria	05/2013
8482	10103^15059-106	60304	Enzo Doria	07/2012
8483	2^200301-17401	60297	Enzo Doria	05/2013
8484	(37*10^60290+71)/9	60291	Robert Price	04/2015
8485	2^200266-94395	60287	Lelio R Paula	09/2011
8486	2^200261-111613	60285	Enzo Doria	05/2014
8487	13717^14570-14570^13717	60280	Norbert Schneider	01/2019
8488	46^36238-45	60256	Norbert Schneider	07/2014
8489	13^54091+94	60255	Lelio R Paula	05/2013
8490	311^24171-154	60253	Enzo Doria	07/2012
8491	2^200120-81089	60243	Paul Bourdelais	01/2012
8492	3^126262+8680	60243	Lelio R Paula	04/2013
8493	43031!3-59049	60239	Robert Price	12/2015
8494	2^200100-111269	60237	Enzo Doria	05/2014
8495	(29*2^200069-1)/5373	60225	Lelio R Paula	01/2014
8496	20^46283-1923	60216	Enzo Doria	03/2013
8497	2^200011-112075	60210	Enzo Doria	05/2014
8498	2^200002+74539	60207	Enzo Doria	04/2016
8499	(386027912^200026-1)/(5778492645749*3427009)	60203	Jens K. Andersen	09/2007
8500	(28*10^60180+149)/3	60181	Robert Price	10/2017

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Probable Primes Top 10000

(252538 PRPs in the top)