PRP Records

Probable Primes Top 10000

(301959 PRPs in the top)


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 ?
10012^1207345+1882577363448Enzo Doria12/2016
10022^1207336+217801363445Enzo Doria03/2024
10032^1207073+883727363366Enzo Doria03/2017
10043^761457-2363308Ryan Propper07/2015
1005(10^363030+7)/337/443363025Alfred Reich12/2021
10062^1204869+224885362702Enzo Doria07/2024
10072^1204540+237541362603Enzo Doria07/2025
10082^1203721+44117362357Enzo Doria04/2025
10092^1200972+141811361529Stefano Morozzi10/2022
1010(2^1200924+324730)/2361514Stefano Morozzi06/2021
1011(2^1200912+274110)/2361511Stefano Morozzi01/2021
10122^1200906+165249361509Stefano Morozzi07/2022
10132^1200890+166339361504Stefano Morozzi01/2023
1014(2^1200887+344126)/2361503Stefano Morozzi10/2020
10152^1200877+186755361500Stefano Morozzi09/2022
10162^1200861+198521361496Stefano Morozzi11/2021
1017(2^1200856+305790)/2361494Stefano Morozzi10/2020
1018(2^1200853+372822)/2361493Stefano Morozzi06/2021
10192^1200812+324178)/2361481Stefano Morozzi06/2021
1020(2^1200768+380458)/2361467Stefano Morozzi01/2021
10212^1200756+140917361464Stefano Morozzi05/2022
10222^1200741+184781361460Stefano Morozzi09/2022
1023(2^1200741+293402)/2361459Stefano Morozzi07/2021
10242^1200734+142653361457Stefano Morozzi02/2023
10262^1200672+1880881361439Enzo Doria10/2016
10252^1200672+141535361439Stefano Morozzi09/2022
10272^1200669+178805361438Stefano Morozzi11/2022
10282^1200660+198555361435Stefano Morozzi12/2021
10292^1200657+164837361434Stefano Morozzi05/2022
10302^1200631+166431361426Stefano Morozzi02/2023
10312^1200627+150669361425Stefano Morozzi02/2023
1032(2^1200603+356030)/2361418Stefano Morozzi10/2020
1033(2^1200590+275854)/2361414Stefano Morozzi03/2021
10342^1200550+139297361402Stefano Morozzi10/2021
10352^1200486+172855361383Stefano Morozzi01/2023
1036(2^1200456+320526)/2361373Stefano Morozzi10/2020
10372^1200443+142121361370Stefano Morozzi01/2023
10382^1200416+164065361362Stefano Morozzi01/2022
10392^1200331+155429361336Stefano Morozzi10/2021
1041(2^1200289+348366)/2361323Stefano Morozzi10/2020
10402^1200289+141885361323Stefano Morozzi11/2022
1042(2^1200284+273162)/2361322Stefano Morozzi10/2020
10432^1200252+194535361312Stefano Morozzi11/2021
1044(2^1200250+364230)/2361311Stefano Morozzi10/2020
10452^1200227+156881361305Stefano Morozzi05/2022
1046(2^1200209+305990)/2361299Stefano Morozzi10/2020
1047(2^1200210+376278)/2361299Stefano Morozzi10/2020
10482^1200202+216499361297Enzo Doria12/2023
1049(2^1200182+274462)/2361291Stefano Morozzi01/2021
10502^1200178+149193361290Stefano Morozzi07/2022
10512^1200168+140403361287Stefano Morozzi03/2022
1052(2^1200162+275910)/2361285Stefano Morozzi03/2021
10532^1200157+168927361284Stefano Morozzi02/2023
10542^1200134+141385361277Stefano Morozzi08/2022
1055(2^1200131+360150)/2361276Stefano Morozzi10/2020
1056(2^1200118+290718)/2361272Stefano Morozzi01/2021
10572^1200022+192777361243Stefano Morozzi09/2022
10582^1200021+149777361243Stefano Morozzi10/2022
1059(64*10^360173-1)/243360173Serge Batalov09/2014
1060(59^203309+1)/60360029Paul Bourdelais09/2021
1061(2*10^359860-11)/9359860Rytis Slatkevicius01/2023
10622^1195093+1882577359759Enzo Doria12/2016
10633^753451+5*2^753451359488Jon Grantham08/2023
10642^1193505+238397359281Enzo Doria07/2025
10652^1192258+36739358906Enzo Doria09/2024
10662^1192251+47183358904Enzo Doria06/2025
1067(6^461108-11)/5358812Paul Bourdelais04/2019
10682^1191375+8543358640Phil Moore06/2008
10692^1191335+50783358628Enzo Doria10/2025
10702^1190972+1880191358519Enzo Doria11/2016
10712^1189930+28549358205Enzo Doria03/2024
1072(45^216551-1)/44358004Paul Bourdelais08/2020
10732^1187473+237257357465Enzo Doria06/2025
10742^1187356+44641357430Enzo Doria06/2025
10752^1187005+230807357325Enzo Doria01/2025
1076(50^210319-1)/49357324Paul Bourdelais08/2020
1077(531^131072+25^131072)/2357184Kellen Shenton03/2021
10782^1186366+226747357132Enzo Doria09/2024
10792^1185014+241039356725Enzo Doria09/2025
10802^1184565+21227356590Enzo Doria08/2023
10812^1180312+44173355310Enzo Doria04/2025
10822^1180159+22823355264Enzo Doria11/2023
10832^1179944+238741355199Enzo Doria07/2025
10842^1179836+1885021355167Enzo Doria02/2017
10852^1178942+32269354897Enzo Doria04/2024
10862^1178474+43369354757Enzo Doria03/2025
10872^1177053+28607354329Enzo Doria02/2024
10882^1177027+234863354321Enzo Doria04/2025
1089(19*10^353884-91)/9353885Alfred Reich02/2023
1090(10^353884*19-91)/9353885Alfred Reich10/2023
109120^271951+3353817Paul Bourdelais01/2021
109272722^72722+7^7353551Serge Batalov04/2024
10932^1173095+21353137Stefano Morozzi10/2022
10942^1170959+218945352494Enzo Doria03/2024
10952^1170915+382623352481Boyan Hu08/2024
1096(63^195893-1)/62352477Paul Bourdelais08/2020
10972^1170575+238043352379Enzo Doria07/2025
10982^1170331+27293352305Enzo Doria01/2024
10992^1170326+7352304Stefano Morozzi10/2022
1100numbpart(100000135540)352269Serge Batalov04/2017
1101(10^352237-1)/9/10567111/950335427352221Maksym Voznyy01/2015
11025*3^737931-2^737931352084Jon Grantham08/2023
11032^1168851+223613351860Enzo Doria06/2024
11042^1168822+236449351851Enzo Doria06/2025
11052^1168554+783529351770Enzo Doria01/2017
1106(2^1168183-1)/54763676838381762583351639Matthias Wurtinger01/2011
11072^1166950+30409351287Enzo Doria03/2024
11082^1166563+223103351171Enzo Doria05/2024
11092^1166248+38251351076Enzo Doria11/2024
11102^1166152+1882411351047Enzo Doria12/2016
11112^1163972+20971350391Enzo Doria08/2023
11122^1163272+22411350180Enzo Doria10/2023
111310^350071+7350072Alfred Reich05/2021
11142^1162154+1890207349844Enzo Doria08/2017
11152^1161076+25349519Henri Lifchitz01/2025
11162^1158543+239573348757Enzo Doria08/2025
1117(7*10^348724-61)/9348724Erik Branger09/2016
1118(4*10^348453+41)/9348453Serge Batalov11/2022
1119(127^165601-1)/126348390Alexander Zhirkov09/2015
11202^1155134+43909347730Enzo Doria04/2025
11212^1155085+213377347716Enzo Doria09/2023
11222^1153083+1883693347113Enzo Doria04/2017
11232^1152186+225529346843Enzo Doria07/2024
11242^1151782+42979346721Enzo Doria02/2025
11252^1151754+41599346713Enzo Doria02/2025
11262^1149592+49801346062Enzo Doria09/2025
11272^1148995+50693345882Enzo Doria09/2025
1128(2^1148729+2^574365+1)/5345802Borys Jaworski03/2007
1129(19*10^345503+53)/9345504Rytis Slatkevicius12/2024
11302^1145882+80779344945Enzo Doria09/2016
11312^1143425+221177344206Enzo Doria03/2024
11322^1141813+27047343720Enzo Doria12/2023
11332^1141114+221869343510Enzo Doria04/2024
11342^1139423+231083343001Enzo Doria01/2025
11352^1138296+27541342662Enzo Doria01/2024
11362^1136462+1887289342110Enzo Doria05/2017
1137F(1636007)341905Henri Lifchitz03/2009
1138(2^1135567+13)/3341840Stefano Morozzi09/2022
11392^1134873+223637341631Enzo Doria06/2024
11402^1133678+782569341272Enzo Doria11/2016
1141(11^327001+1)/12340536Paul Bourdelais09/2013
11422^1129965+223667340154Enzo Doria06/2024
11432^1129361+221597339972Enzo Doria04/2024
11442^1128706+225529339775Enzo Doria07/2024
11452^1128621+25919339749Enzo Doria12/2023
11462^1127479+234083339405Enzo Doria03/2025
1147(2^1127239+2^563620+1)/5339333Borys Jaworski11/2006
1148Tau(907^20848)339132Nik Lygeros / Olivier Rozier01/2016
11492^1126380-3339075Paul Bourdelais06/2019
11502^1125784+24331338895Enzo Doria10/2023
11512^1125446+1885099338794Enzo Doria08/2017
1152(63^188147+1)/64338539Paul Bourdelais12/2020
11532^1124549+143807338523Enzo Doria10/2016
1154(4*10^338476+23)/9338476Serge Batalov11/2022
11552^1123484+50251338203Enzo Doria08/2025
11562^1123295+240773338146Enzo Doria09/2025
11572^1123083+237413338082Enzo Doria06/2025
11582^1121187+1886783337511Enzo Doria04/2017
1159(48^200443-1)/47336992Paul Bourdelais08/2020
1160(2*10^336405+43)/9336405Rytis Slatkevicius01/2023
1161(94^170371-1)/93336162Paul Bourdelais09/2020
11622^1116184+1883521336005Enzo Doria02/2017
11632^1115727+27683335868Enzo Doria01/2024
11642^1114974+28759335641Enzo Doria02/2024
11652^1114789+46427335585Enzo Doria05/2025
11662^1114517+1880087335504Enzo Doria10/2016
1167(5*10^335480+31)/9335480Serge Batalov11/2022
11685*3^701688+2^701688334791Jon Grantham08/2023
1169(101^166849+1)/102334418Paul Bourdelais12/2020
1170(3^700897+1)/4334413Paul Bourdelais04/2010
11712^1109520+48331333999Enzo Doria07/2025
11722^1109200+223201333903Enzo Doria05/2024
11732^1108463+32513333681Enzo Doria05/2024
11742^1107871+240233333503Enzo Doria08/2025
11752^1104500+22411332488Enzo Doria10/2023
11762^1104408-114539332460Enzo Doria03/2015
1177(3^695701-1)/80701318331926Paul Vanderveen05/2025
11782^1101921+82085331712Enzo Doria10/2016
11792^1101895+29963331704Enzo Doria03/2024
11802^1101167-1101167^2331485Henri Lifchitz07/2024
11812^1101091+224153331462Enzo Doria06/2024
11822^1100655+683513331331Enzo Doria01/2017
11832^1100590+50809331311Enzo Doria09/2025
11842^1100373+48527331246Enzo Doria07/2025
1185(10^330906+71)/9330906Serge Batalov07/2015
11866^425185-425185^6330859Henri Lifchitz06/2025
11872^1098346+482899330636Enzo Doria11/2016
11882^1096976+25330223Henri Lifchitz11/2024
1189(19*10^330041+53)/9330042Rytis Slatkevicius12/2024
1190(2^1096212+19)/5329992Stefano Morozzi09/2022
11912^1095976+44701329922Enzo Doria05/2025
11922^1095820+239581329875Enzo Doria08/2025
11932^1095679+1878713329833Enzo Doria09/2016
11942^1094874+27499329590Enzo Doria01/2024
11952^1094740-1851539329550Enzo Doria08/2015
11962^1092242+19328798Stefano Morozzi10/2022
1197(19*10^328590+53)/9328591Rytis Slatkevicius12/2024
11982^1091469-379369328565Enzo Doria03/2014
11992^1090801+24227328364Enzo Doria10/2023
12002^1088416+237661327646Enzo Doria06/2025
12012^1087944+39091327504Enzo Doria11/2024
1202(69^178093-1)/68327485Paul Bourdelais08/2020
12032^1086662+43909327118Enzo Doria04/2025
1204(10^326884+7)/421326882Alfred Reich12/2021
12052^1085876+48151326882Enzo Doria06/2025
12062^1085750+582349326844Enzo Doria11/2016
1207(54308^69169-1)/(54308^263-1)326261Ryan Propper11/2023
12082^1083596+483061326195Enzo Doria12/2016
1209(2^541456-1)*10^162995+2^541455-1325990paolo galliani01/2019
12102^1082908+583561325988Enzo Doria05/2017
121130^220411-29^220411325574Jean-Louis Charton10/2018
12122^1081308+7325507Stefano Morozzi10/2022
12132^1080151+225413325158Enzo Doria08/2024
12142^1080032+25171325123Enzo Doria11/2023
12152^1078242+1881649324584Enzo Doria11/2016
12162^1077737+1880117324432Enzo Doria10/2016
12172^1076996+45631324209Enzo Doria05/2025
12183^679017-5*2^679017323974Jon Grantham08/2023
12192^1076006+29539323911Enzo Doria03/2024
12202^1075573+32417323780Enzo Doria05/2024
12212^1075425+1880117323736Enzo Doria10/2016
1222(28^223381+1)/29323267Paul Bourdelais12/2020
122310^322999+187071323000Stefano Morozzi03/2019
122410^322999-143151322999Patrick De Geest05/2020
12252^1072744+32641322929Enzo Doria05/2024
12262^1072146+1886869322749Enzo Doria04/2017
12272^1072118-7321953322740Enzo Doria02/2015
12282025^97561-2024^97561322579Henri Lifchitz01/2025
12292^1071026+1886869322411Enzo Doria04/2017
12302^1070539+1880633322265Enzo Doria10/2016
12312^1069894+235399322071Enzo Doria05/2025
12322^1069788+26587322039Enzo Doria12/2023
12332^1069293-1147195321890Enzo Doria05/2015
12342^1065968+1880941320889Enzo Doria10/2016
12352^1065897-1147195320867Enzo Doria05/2015
12362^1063427+1882103320124Enzo Doria12/2016
12372^1061095-1061095319422Henri Lifchitz10/2013
12382^1060950+653119319378Enzo Doria12/2016
12392^1060363+782753319202Enzo Doria11/2016
12402^1060028+31771319101Enzo Doria04/2024
1241(71^172259-1)/70318895Paul Bourdelais08/2020
12422^1058425+38507318618Enzo Doria11/2024
1243-30*Bern(85996)/236037521318354Sergey Batalov10/2023
1244(13^285707-1)/870834948318253Paul Vanderveen05/2025
12452^1055665+30407317787Enzo Doria03/2024
12462^1054736+483061317508Enzo Doria12/2016
12472^1053965+1879667317276Enzo Doria10/2016
1248(43^194119-1)/42317086Paul Bourdelais08/2020
12492^1052899+225413316955Enzo Doria08/2024
12502^1052186-458165316740Enzo Doria03/2015


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: October, 25 2025 18:00 (Time in France)

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