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 ?
2251	2^447552-1019	134727	Yves Minet	02/2014
2252	(2*10^134720-41)/3	134720	Robert Price	02/2018
2253	2^447437-113569	134692	Enzo Doria	08/2014
2254	2^447426-65	134689	Lelio R Paula	08/2017
2255	2^447357-2797573	134668	Enzo Doria	04/2016
2256	2^447278+93	134645	Lelio R Paula	08/2017
2257	2^447094-113193	134589	Enzo Doria	07/2014
2258	3^282041-9934	134568	Enzo Doria	05/2014
2259	2^447019-109039	134567	Enzo Doria	04/2014
2260	2^446990-22041	134558	Enzo Doria	07/2013
2261	123^64370+122	134528	Karsten Bonath	04/2018
2262	2^446782-39701	134495	Enzo Doria	09/2015
2263	2^446494-16485	134409	Enzo Doria	04/2013
2264	29504^30069-30069^29504	134405	Norbert Schneider	12/2014
2265	2^446441+65	134393	Lelio R Paula	08/2017
2266	(10^134385+719)/9	134385	Serge Batalov	12/2014
2267	(2*10^134364+529)/9	134364	Robert Price	01/2018
2268	(13*2^446187-1)/661	134314	Lelio R Paula	07/2015
2269	5^192103+3^192103+2^192103+1	134275	Matthias Baur	12/2019
2270	(2^446022-7)/339	134264	Lelio R Paula	07/2015
2271	63^74568+2	134174	Lelio R Paula	06/2017
2272	2^445671-22071	134161	Enzo Doria	07/2013
2273	532^49205+49205^532	134129	Norbert Schneider	02/2019
2274	(28*10^134122-1)/9	134123	Serge Batalov	10/2014
2275	2^445515-113859	134114	Enzo Doria	10/2014
2276	(22*10^134111-37)/3	134112	Robert Price	04/2019
2277	2^445328-216917	134058	Enzo Doria	05/2014
2278	2^445202+1874899	134020	Enzo Doria	06/2016
2279	(13*2^445102+1)/17	133989	Lelio R Paula	07/2015
2280	(35*10^133979-593)/9	133980	Robert Price	07/2018
2281	2*10^133955+51	133956	Robert Price	05/2018
2282	2^444964-113639	133948	Enzo Doria	08/2014
2283	28118^30097-30097^28118	133902	Norbert Schneider	01/2015
2284	10^133902-100001	133902	Robert Price	07/2020
2285	2^444784-113859	133894	Enzo Doria	10/2014
2286	(266*10^133603+1)/3	133605	Robert Price	04/2020
2287	(89*10^133580+1)/9	133581	Serge Batalov	05/2010
2288	62^74521-61^74521	133571	Robert Price	05/2013
2289	(182*10^133543+1)/3	133545	Robert Price	02/2020
2290	2^443198-1867301	133416	Enzo Doria	03/2016
2291	(19*10^133390+101)/3	133391	Robert Price	09/2019
2292	(71^72043-1)/70	133369	Paul Bourdelais	09/2017
2293	2^442799+1874633	133296	Enzo Doria	06/2016
2294	L(637751)	133283	Henri Lifchitz	09/2008
2295	109^65410-2	133269	Lelio R Paula	10/2017
2296	2^442688-113489	133263	Enzo Doria	08/2014
2297	(7*2^442640-1)/783	133246	Lelio R Paula	07/2015
2298	(9*2^442463+1)/17441	133192	Lelio R Paula	07/2015
2299	2^442437-1849993	133187	Enzo Doria	08/2015
2300	2^442430-2791721	133185	Enzo Doria	03/2016
2301	(13*2^442428-1)/309	133183	Lelio R Paula	07/2015
2302	(25*2^442379-1)/71	133169	Lelio R Paula	07/2015
2303	(2^441799+78557)/5	132995	Lelio R Paula	07/2015
2304	2^441781-2787883	132990	Enzo Doria	03/2016
2305	(3*2^441685+1)/749	132959	Lelio R Paula	07/2015
2306	2^441618+37	132941	Lelio R Paula	08/2017
2307	2^441521-113575	132912	Enzo Doria	08/2014
2308	7*10^132884-99	132885	Robert Price	06/2019
2309	(103*10^132879+17)/3	132881	Robert Price	08/2020
2310	2^441396-65	132874	Lelio R Paula	08/2017
2311	2^441330+1871959	132854	Enzo Doria	05/2016
2312	2^441063+383	132774	Lelio R Paula	06/2012
2313	(22*10^132746+53)/3	132747	Robert Price	07/2019
2314	2^440846+1870909	132708	Enzo Doria	05/2016
2315	2^440656-113489	132651	Enzo Doria	08/2014
2316	numbpart(14180123587)	132646	Serge Batalov	04/2017
2317	(19*10^132550+191)/3	132551	Robert Price	05/2019
2318	(2^440399-1)/(1621082028116197820931518475633880799)	132538	Dario Alpern	01/2015
2319	(38^83891+1)/39	132529	Robert Price	09/2013
2320	2*10^132493-43	132494	Robert Price	04/2018
2321	(418*10^132441+23)/9	132443	Robert Price	02/2020
2322	2^439931-21	132433	Lelio R Paula	08/2017
2323	47^79201-46^79201	132432	Robert Price	10/2012
2324	2^439897-113653	132423	Enzo Doria	08/2014
2325	(5*2^439822+1)/9	132400	Lelio R Paula	06/2015
2326	(112*10^132337-1)/3	132339	Serge Batalov	12/2014
2327	2^439576-113247	132326	Enzo Doria	07/2014
2328	2^439497-29143	132302	Enzo Doria	07/2015
2329	2^439409-114193	132276	Enzo Doria	12/2014
2330	(44*10^132233-233)/9	132234	Robert Price	01/2019
2331	9*10^132148-7	132149	Robert Price	09/2015
2332	(47*10^132125-119)/9	132126	Robert Price	05/2019
2333	2^438845+1870217	132106	Enzo Doria	05/2016
2334	2^438789+87855	132089	Lelio R Paula	01/2016
2335	2^438774-2786411	132085	Enzo Doria	03/2016
2336	2^438755-1848205	132079	Enzo Doria	07/2015
2337	2^438739-112087	132074	Enzo Doria	06/2014
2338	13907#+(318259#)/(13907#)	131923	Makoto Morimoto	10/2017
2339	L(631181)	131910	Henri Lifchitz	09/2008
2340	(47*10^131886-119)/9	131887	Robert Price	05/2019
2341	(3*2^438121+1)/4308193883	131879	Lelio R Paula	06/2015
2342	2^438079-1863877	131875	Enzo Doria	03/2016
2343	(2^438067+5)/329	131869	Lelio R Paula	06/2015
2344	2^437908-113855	131824	Enzo Doria	09/2014
2345	2^437884-286349	131817	Enzo Doria	07/2015
2346	(11*10^131784-17)/3	131785	Robert Price	06/2018
2347	4*10^131719-93	131720	Robert Price	07/2020
2348	3^276062-112292	131716	Enzo Doria	07/2014
2349	(7*10^131682+89)/3	131683	Robert Price	08/2020
2350	2^437343+75953	131654	Enzo Doria	04/2016
2351	35^85243-34^85243	131621	Robert Price	05/2012
2352	(203*10^131457+1)/3	131459	Robert Price	03/2020
2353	(68^71713+1)/69	131413	Paul Bourdelais	09/2017
2354	2^436451+1884713	131385	Enzo Doria	03/2017
2355	2^436365+35	131359	Robert Price	11/2015
2356	2^436300+1866871	131340	Enzo Doria	03/2016
2357	(7*10^131339+179)/3	131340	Robert Price	09/2018
2358	(37*10^131270+341)/9	131271	Robert Price	08/2018
2359	(5*10^131223-29)/3	131224	Robert Price	03/2018
2360	(23*2^435891-1)/699	131215	Lelio R Paula	07/2015
2361	(11*2^435879+1)/3337	131211	Lelio R Paula	06/2015
2363	(2^435808+1)/641/6700417	131182	Lelio R Paula	02/2012
2362	(2^435808+1)/4294967297	131182	Serge Batalov	12/2016
2366	2^435773+1875557	131181	Enzo Doria	06/2016
2365	(16*10^131180+167)/3	131181	Robert Price	06/2019
2364	(26*10^131180-77)/3	131181	Robert Price	11/2019
2367	(25*10^131144-7)/9	131145	Robert Price	05/2018
2368	2^435612-2789939	131133	Enzo Doria	12/2015
2369	66^72047-65^72047	131093	Robert Price	09/2013
2370	(5*10^131090+37)/3	131091	Robert Price	03/2018
2371	2^435468+75631	131089	Enzo Doria	04/2016
2372	37^83588-2	131083	Lelio R Paula	08/2015
2373	(4^217720+11)/3	131081	Robert Price	02/2017
2374	2^435202-113193	131009	Enzo Doria	07/2014
2375	9*10^130998-19	130999	Robert Price	07/2019
2376	floor((sqrt(5)-1)/2*10^130911)	130911	Serge Batalov	06/2017
2377	2^434835-111937	130899	Enzo Doria	05/2014
2378	2^434685+72257	130854	Enzo Doria	04/2016
2379	(7*10^130825+113)/3	130826	Robert Price	02/2018
2380	2^434539-29317	130810	Enzo Doria	07/2015
2381	2^434469-114259	130789	Enzo Doria	01/2015
2382	2^434246+33	130722	Robert Price	11/2015
2383	9*10^130638+41	130639	Robert Price	08/2020
2384	2^433911-91	130621	Lelio R Paula	06/2017
2385	2^433744-114419	130570	Enzo Doria	02/2015
2387	2^433708+1869451	130560	Enzo Doria	05/2016
2386	2^433710+93	130560	Lelio R Paula	06/2017
2388	(29*2^433547-1)/27	130511	Lelio R Paula	06/2015
2389	4*10^130480+9	130481	Robert Price	05/2015
2390	(23*2^433449-1)/75	130481	Lelio R Paula	06/2015
2391	(23*2^433334-1)/3731	130445	Lelio R Paula	06/2015
2392	2^433023-113497	130353	Enzo Doria	08/2014
2393	2^433002+1179379	130347	Enzo Doria	06/2016
2394	2^432974+19	130339	Robert Price	08/2015
2395	(2^432457-1)/1672739247834685086279697	130159	Tony Prest / Never Odd Or Even	09/2013
2396	2^432217+41	130111	Lelio R Paula	06/2017
2397	(2^216089*(2^216091-1)-339)/25	130098	Makoto Morimoto	03/2017
2398	((2^216091+1066)^2+(2^216091+1066)+41)/47/2069	130095	Makoto Morimoto	05/2016
2399	97^65480-2	130094	Lelio R Paula	05/2017
2400	4*10^130088-89	130089	Robert Price	11/2018
2401	2^432117-113215	130081	Enzo Doria	07/2014
2402	2^431804+72511	129986	Enzo Doria	04/2016
2403	(3^272141-3^136071+1)/7	129844	Serge Batalov	03/2014
2404	(47*10^129789-119)/9	129790	Robert Price	05/2019
2405	(9*2^431141+1)/17	129787	Lelio R Paula	06/2015
2406	(29*2^430881-1)/21	129709	Lelio R Paula	06/2015
2407	2^430807+1869563	129686	Enzo Doria	05/2016
2408	2^430721-21429	129660	Enzo Doria	07/2013
2409	2^430415-276271	129568	Enzo Doria	07/2015
2410	(199*10^129487-7)/3	129489	Robert Price	05/2020
2411	2^430142-2791721	129486	Enzo Doria	03/2016
2412	(7*10^129472-13)/3	129473	Robert Price	07/2018
2413	2^429568-21017	129313	Enzo Doria	07/2013
2414	(11*10^129239-179)/3	129240	Robert Price	09/2018
2415	2^429194-112685	129201	Enzo Doria	06/2014
2416	2^429145-2780449	129186	Enzo Doria	04/2016
2417	2^428892-113453	129110	Enzo Doria	07/2014
2418	(11*2^428881-7)/15	129106	Renaud Lifchitz	03/2011
2419	2^428727-113959	129060	Enzo Doria	10/2014
2420	(7*2^428725-1)/13	129059	Lelio R Paula	05/2014
2421	(10^129051-31)/3	129051	Serge Batalov	12/2014
2422	(134*10^129038+7)/3	129040	Robert Price	02/2020
2423	2^428564+71161	129011	Enzo Doria	04/2016
2424	2^428502-113285	128992	Enzo Doria	07/2014
2425	2^428421-21373	128968	Enzo Doria	06/2013
2426	L(616787)	128901	Henri Lifchitz	09/2008
2427	91^65772-2	128851	Lelio R Paula	05/2017
2428	2^428022+43	128848	Lelio R Paula	05/2017
2429	2^427999-459397	128841	Enzo Doria	05/2015
2430	2^427993+76847	128839	Enzo Doria	05/2016
2431	2^427824-1851507	128788	Enzo Doria	08/2015
2432	2^427807-21469	128783	Enzo Doria	07/2013
2433	11^123594-240	128710	Enzo Doria	09/2012
2434	2^427504-21503	128692	Enzo Doria	07/2013
2435	2^427420+91	128667	Lelio R Paula	05/2017
2436	(68*10^128645-257)/9	128646	Robert Price	07/2019
2437	2^427269-113635	128621	Enzo Doria	08/2014
2438	2^427130+1877569	128579	Enzo Doria	08/2016
2439	2^427016-115349	128545	Enzo Doria	07/2015
2440	(4*10^128510+137)/3	128511	Robert Price	03/2018
2441	2^426889-112879	128507	Enzo Doria	06/2014
2442	2^426804+1869931	128481	Enzo Doria	05/2016
2443	2^426750+77635	128465	Enzo Doria	05/2016
2444	2^426425-91	128367	Lelio R Paula	05/2017
2445	(15*2^426398-1)/11	128359	Lelio R Paula	05/2014
2446	2^426352+74971	128345	Enzo Doria	04/2016
2447	(199*10^128343-7)/3	128345	Robert Price	05/2020
2448	4*10^128343-21	128344	Robert Price	09/2018
2449	2^426300-1863689	128330	Enzo Doria	03/2016
2450	2^426293+1881017	128327	Enzo Doria	11/2016
2451	2^426043+35	128252	Robert Price	11/2015
2452	(4*10^128244-19)/3	128245	Robert Price	03/2018
2453	(305*10^128198+1)/9	128200	Robert Price	02/2020
2454	2^425808-459959	128181	Enzo Doria	06/2015
2455	2^425627-113605	128127	Enzo Doria	08/2014
2456	(22*10^128094+53)/3	128095	Robert Price	07/2019
2457	(86*10^128086-221)/9	128087	Robert Price	09/2019
2458	18565^30002-30002^18565	128070	Norbert Schneider	01/2015
2459	(2^425287-9)/2737	128021	Lelio R Paula	05/2015
2460	(3*2^425233-1)/25	128007	Lelio R Paula	05/2014
2461	2^425205+4911	128000	Marek Hubal	02/2017
2462	2^425118-113663	127974	Enzo Doria	08/2014
2463	(86*10^127967-329)/9	127968	Robert Price	01/2020
2464	2^425061+1869761	127957	Enzo Doria	05/2016
2465	746^44541+44541^746	127955	Norbert Schneider	07/2019
2466	2^424918-21141	127914	Enzo Doria	07/2013
2467	2^424864-29489	127897	Enzo Doria	08/2015
2468	(97*10^127858-1)/3	127860	Serge Batalov	12/2014
2469	2^424632-2786639	127827	Enzo Doria	03/2016
2470	2^424577-113755	127811	Enzo Doria	09/2014
2471	(7*2^424512-1)/3	127792	Lelio R Paula	05/2014
2472	(56*10^127752+691)/9	127753	Robert Price	05/2019
2473	11^122629-720	127705	Enzo Doria	11/2012
2474	22*10^127645+3	127647	Robert Price	01/2020
2475	4*10^127562-39	127563	Robert Price	09/2020
2476	2^423696-21429	127546	Enzo Doria	07/2013
2477	2^423664-1864559	127536	Enzo Doria	03/2016
2478	3^267267-4	127519	Henri Lifchitz	10/2014
2479	(103*10^127491+17)/3	127493	Robert Price	08/2020
2480	(19^99689+5^99689)/24	127477	Robert Price	09/2013
2481	(21*2^423372+1)/101	127447	Lelio R Paula	05/2014
2482	2^423328-21537	127435	Enzo Doria	07/2013
2483	(67*10^127413-7)/3	127415	Robert Price	01/2020
2484	(2*10^127407+73)/3	127407	Robert Price	09/2020
2485	(2^423165-7)/25	127384	Lelio R Paula	05/2015
2486	(112*10^127324+17)/3	127326	Robert Price	03/2020
2487	(F(5)^182099-F(4)^182099)/F(3)	127282	Wayne Halsdorf	08/2013
2488	(16*10^127259+197)/3	127260	Robert Price	04/2019
2489	(26*10^127240+61)/3	127241	Robert Price	10/2019
2490	(234483*27^88884-145)/26	127230	Curtis Bright	05/2015
2491	2^422515-114997	127190	Enzo Doria	06/2015
2492	5*10^127179-3	127180	Robert Price	07/2015
2493	(44*10^127169-233)/9	127170	Robert Price	01/2019
2494	5*10^127153+77	127154	Robert Price	12/2018
2495	736^44335+44335^736	127104	Norbert Schneider	07/2019
2496	-516776642557847117490*Bern(37960)/34256837217082767928421792453	127042	Thomas Ritschel	06/2017
2497	(78^67141-1)/77	127036	Paul Bourdelais	09/2017
2498	2^421860-113285	126993	Enzo Doria	07/2014
2499	(2^421827-7)/11	126982	Lelio R Paula	05/2015
2500	11^121910-840	126957	Enzo Doria	12/2012

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Probable Primes Top 10000

(271067 PRPs in the top)