PRP Records

Probable Primes Top 10000

(301845 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 ?
3501(19*10^168173+77)/3168174Robert Price05/2019
3502(74*10^168170+529)/9168171Robert Price02/2022
35032^558640-114149168168Enzo Doria12/2014
35042^558498-1849277168125Enzo Doria08/2015
35052^558476-1850249168119Enzo Doria08/2015
3506(7*10^168067+71)/3168068Robert Price05/2018
35072^558150-1852211168020Enzo Doria08/2015
35082^558125-113661168013Enzo Doria09/2014
3509393^64747-392^64747167980Jean-Louis Charton08/2012
3510(8*10^167965-11)/3167966Robert Price07/2023
35112^557916+216151167950Enzo Doria12/2023
3512(13*10^167911+179)/3167912Robert Price11/2018
3513(26*10^167861-167)/3167862Robert Price10/2019
351436^107827-107827167812Kellen Shenton06/2023
351532027^37242-37242^32027167795Frank Doornink01/2024
351639^105456+2167788Robert Price04/2015
35172^557322+217519167771Enzo Doria01/2024
3518(28^115877-1)/27167691Paul Bourdelais12/2017
35196*10^167662-13167663Robert Price07/2022
352010^167639+121911167640Patrick De Geest07/2018
352110^167639-8001167639Robert Price03/2018
35222^556504-462059167525Enzo Doria07/2015
3523(88*10^167522-637)/9167523Robert Price11/2020
35245*10^167510+9167511Robert Price08/2015
35257*10^167437-93167438Robert Price08/2020
3526(43^102451-1)/7138097213378082167335Paul Vanderveen05/2025
352725455^37978-37978^25455167323Frank Doornink01/2024
352811^160663+6167314Paul Bourdelais02/2021
3529(7*10^167308-493)/9167308Robert Price04/2021
35302^555759+74333167301Enzo Doria07/2023
353126084^37871-37871^26084167253Frank Doornink03/2024
35322^555343+1874333167175Enzo Doria06/2016
35332^555210-461261167135Enzo Doria07/2015
35349*10^166996+59166997Robert Price01/2020
3535(68*10^166976-329)/9166977Robert Price03/2021
3536(64*10^166901+683)/9166902Robert Price06/2022
35372^554372+1880527166883Enzo Doria11/2016
35382^554299+72173166861Enzo Doria04/2016
3539(185*10^166837+7)/3166839Robert Price03/2020
3540(14*10^166813+139)/9166814Robert Price11/2021
354126084^37767-37767^26084166794Frank Doornink03/2024
35422^554037-2797063166782Enzo Doria03/2016
354331861^37028-37028^31861166747Frank Doornink01/2024
3544(49*10^166721-139)/9166722Robert Price03/2019
35452*10^166646+69166647Robert Price06/2020
35462^553484-29819166616Enzo Doria08/2015
3547(188*10^166611+7)/3166613Robert Price03/2020
35482^553383-2784217166585Enzo Doria10/2015
35492^553069+76427166491Enzo Doria05/2016
355025218^37819-37819^25218166469Frank Doornink12/2023
35512*10^166458+51166459Robert Price05/2018
3552589^60089-588^60089166454Jean-Louis Charton09/2012
355325214^37799-37799^25214166378Frank Doornink11/2023
355411^159756-2424166369Mike Oakes06/2010
35552^552649-361275166364Enzo Doria05/2014
35562^552628-113669166358Enzo Doria09/2014
3557(19*10^166325+137)/3166326Robert Price03/2022
355810^166324+550603166325Patrick De Geest07/2018
355910^166324-801166324Robert Price02/2018
3560(85*10^166297-1)/3166299Robert Price02/2020
3561(19*10^166280-7)/3166281Robert Price12/2023
356225533^37726-37726^25533166263Frank Doornink02/2024
35638*10^166227+87166228Robert Price10/2019
35642^552137+1879397166210Enzo Doria09/2016
3565262273205671539190984629()252475512364409752762433166141Anonymous01/2025
3566490079063773165613318095()218182139934160868002603166141Anonymous01/2025
3567140717254840416411192803()712689271538459396766869166140Anonymous01/2025
3568122398296040696255481419()271117913237372866926417166140Anonymous01/2025
3569(103*10^166126+11)/3166128Robert Price01/2021
3570(22*10^166077+179)/3166078Robert Price02/2022
3571(23^121949-1)/22166061Paul Bourdelais10/2017
35722^551576+236221166041Enzo Doria05/2025
35732^551542+19249166031Payam Samidoost08/2002
35742^551535-23821166029Enzo Doria08/2013
35752^551507-23557166021Enzo Doria08/2013
357632030^36841-36841^32030165990Frank Doornink01/2024
357710^165947-7000000001165947Robert Price12/2021
35784*10^165938-47165939Robert Price10/2021
35797*10^165916-3165917Robert Price08/2015
3580(29*10^165796+67)/3165797Robert Price12/2019
358181^86837-80^86837165728Robert Price01/2015
3582(71*10^165716-17)/9165717Serge Batalov01/2023
3583fibonacci(792909)+3165708Jon Grantham08/2023
3584(71*10^165663-539)/9165664Robert Price07/2019
358525682^37567-37567^25682165657Frank Doornink02/2024
35862^550270-69551165648Enzo Doria12/2015
35872^550250+29329165642Enzo Doria03/2024
3588(202*10^165569-13)/9165571Robert Price01/2020
35892^550000-23625165567Enzo Doria08/2013
359031688^36783-36783^31688165557Frank Doornink01/2024
35912^549675-1852057165469Enzo Doria08/2015
35922^549663+212543165466Enzo Doria08/2023
3593(3^549633)%(2^549633)165456Henri Lifchitz06/2025
3594(529*10^165394-7)/9165396Robert Price08/2021
359526253^37424-37424^26253165384Frank Doornink03/2024
3596-tau(103^14938)165374Nik Lygeros / Olivier Rozier10/2013
3597(28*10^165358-1)/9165359Serge Batalov10/2014
35982^549278+1879669165350Enzo Doria09/2016
3599(7*10^165350-439)/9165350Robert Price02/2018
36002^549252-351269165342Enzo Doria06/2015
36012^549221+335931165332Enzo Doria09/2024
360267*10^165327-9165329Robert Price03/2021
3603(14*10^165282+73)/3165283Robert Price12/2018
3604(8*10^165283-629)/9165283Robert Price01/2022
36052^549049+2797607165281Enzo Doria04/2016
3606(218*10^165258+7)/9165260Robert Price06/2022
3607(7*10^165239+107)/3165240Robert Price02/2018
36082^548880+23961165230Enzo Doria10/2023
36095*2^548778+3165200Jon Grantham07/2023
3610(44^100511-1)/43165184Paul Bourdelais11/2017
3611(7*10^165134+107)/3165135Robert Price02/2018
3612(301*10^165082+23)/9165084Robert Price06/2021
3613(23*10^165060-83)/3165061Robert Price08/2019
36147*10^165023-27165024Robert Price11/2022
3615(76*10^164984+77)/9164985Robert Price10/2019
361631058^36715-36715^31058164931Frank Doornink01/2024
3617(4*10^164929-211)/9164929Robert Price03/2022
361810^164878-500001164878Robert Price03/2022
36199*10^164791-89164792Robert Price04/2020
3620(2^788414)%F(788414)164769Henri Lifchitz05/2025
36212^547178-1856501164717Enzo Doria10/2015
362211^158160-60164707Enzo Doria07/2012
3623(26*10^164643-167)/3164644Robert Price10/2019
3624(10^164643+83)/3164643Robert Price08/2021
36252^546398-59201164483Enzo Doria10/2015
36262^546332-114893164463Enzo Doria05/2015
362736087^36087-36080^36080164462Henri Lifchitz08/2024
362832003^36504-36504^32003164458Frank Doornink01/2024
3629(65*10^164427+277)/9164428Robert Price08/2021
36302^545958+1876189164350Enzo Doria07/2016
36312^545878-49841164326Enzo Doria10/2015
3632(10^164284+77)/3164284Robert Price01/2018
36332^545668-4019164263Yves Minet04/2017
363410^164216+780639164217Patrick De Geest08/2021
363610^164216-50000000001164216Robert Price12/2020
363510^164216-891051164216Patrick De Geest08/2021
3637(13*53^238539*617^9)/10^247183164151Hans Havermann07/2017
3638(16*10^164122+197)/3164123Robert Price04/2019
36392^545185+76757164118Enzo Doria05/2016
36402^545076-114329164085Enzo Doria01/2015
3641(2*10^164043-143)/3164043Robert Price03/2018
3642(33085^36481-1)/(33085^191-1)164018Ryan Propper11/2023
3643(29^112153+1)/30164011Lelio R Paula03/2017
36442^544757+1874777163989Enzo Doria06/2016
36452^544723+211193163978Enzo Doria08/2023
36462^544444-457199163894Enzo Doria01/2015
3647(32804^36481-1)/(32804^191-1)163883Ryan Propper11/2023
36482^544264-343529163840Enzo Doria07/2015
36497*10^163780+9163781Robert Price09/2015
3650(2^783598)%L(783598)163761Henri Lifchitz05/2025
36512^543989+2793047163758Enzo Doria02/2016
3652(28*10^163709+113)/3163710Robert Price03/2020
3653(2^543398)/(543398^2)163568Henri Lifchitz05/2025
3654(2013^49729-1)/(2013^223-1)163561Ryan Propper11/2023
3655L(2*543272)%(2^543272)163541Henri Lifchitz07/2025
3656(23*10^163523+301)/9163524Robert Price06/2021
3657(68*10^163521-329)/9163522Robert Price03/2021
365835820^35899+35899^35820163489Norbert Schneider11/2021
36592^542870-69551163421Enzo Doria12/2015
36602^542502+24799163310Enzo Doria10/2023
36612^542395+72533163278Enzo Doria04/2016
36622^542258+216949163236Enzo Doria12/2023
36632^542072-3683163180Yves Minet03/2017
3664fibonacci(780566)-4163129Jon Grantham08/2023
3665(682*10^163106-7)/9163108Robert Price08/2021
36662^541779-1867357163092Enzo Doria04/2016
3667(29*10^163056+313)/9163057Robert Price04/2021
36682^541476+214743163001Enzo Doria11/2023
366913^142159+14^142159-2162933Harsh Aggarwal05/2024
36708*10^162924+9162925Robert Price12/2015
36712^540905+81557162829Enzo Doria08/2016
36722^540628-2939162746Yves Minet09/2014
3673919^54919-918^54919162743Jean-Louis Charton01/2013
3674(203*10^162689+1)/3162691Robert Price03/2020
36753*10^162620-59162621Robert Price09/2018
36762^540180+26791162611Enzo Doria12/2023
36773^340694-112960162553Enzo Doria07/2014
36782^539925+81162534Henri Lifchitz11/2024
36792^539807-114081162499Enzo Doria12/2014
3680414^62093+62093^414162498Norbert Schneider03/2022
36812^539654-114893162453Enzo Doria05/2015
36829*10^162449-71162450Robert Price11/2020
36832^539617-1851583162441Enzo Doria08/2015
3684(509*10^162422+31)/9162424Robert Price08/2022
3685(91*10^162410+11)/3162412Robert Price02/2020
36862^539346+81049162360Enzo Doria07/2016
36872^539220-115499162322Enzo Doria07/2015
36882^539217-113713162321Enzo Doria09/2014
36899^170099-8^170099162316Jean-Louis Charton05/2005
36904*10^162263-39162264Robert Price09/2020
369131243^36098-36098^31243162252Frank Doornink01/2024
369231987^36000-36000^31987162180Frank Doornink01/2024
3693(115*10^162153-1)/3162155Serge Batalov12/2014
3694(10^162138+11)/3162138Serge Batalov07/2015
3695(61*10^162100-403)/9162101Robert Price10/2021
36962^538473-112723162097Enzo Doria06/2014
36972^538157+79337162002Enzo Doria06/2016
36982^538136-114749161996Enzo Doria05/2015
36992^538104+1531161986Lelio R Paula01/2013
3700(9*29^110727-1199)/14161927Curtis Bright05/2015
3701((2^179294-1)^3+2)/11161918Serge Batalov03/2023
370231198^36027-36027^31198161910Frank Doornink01/2024
37032^537815-22737161899Enzo Doria07/2013
37042^537804-39839161896Enzo Doria09/2015
3705(754*10^161816-7)/9161818Robert Price05/2020
37062^537461+29867161792Enzo Doria03/2024
37072^537458-59201161791Enzo Doria10/2015
37082*10^161766+51161767Robert Price05/2018
3709(7*10^161760+131)/3161761Robert Price06/2020
37102^537209-49849161717Enzo Doria10/2015
3711(58*10^161691+329)/9161692Robert Price05/2019
371223*10^161668-3161670Robert Price10/2021
37132^536937+1879397161635Enzo Doria09/2016
37143*2^536868-5161614Jon Grantham07/2023
371534*10^161593-9161595Robert Price06/2020
3716(31*10^161582-1)/3161584Robert Price02/2020
371724494^36813+36813^24494161575Norbert Schneider11/2023
37182^536569-22881161524Enzo Doria07/2013
3719(46*10^161505+593)/9161506Robert Price04/2022
372010^161253+573493161254Patrick De Geest07/2018
372110^161253-8001161253Robert Price03/2018
372297*10^161247-3161249Robert Price05/2020
37237*10^161192-9161193Robert Price10/2015
37242^535415-19161176Stefano Morozzi07/2022
37252^535269-113803161133Enzo Doria09/2014
37262^535205-23295161113Enzo Doria08/2013
3727(49*10^161105+437)/9161106Robert Price09/2021
37282^534961+6561161040Henri Lifchitz11/2024
3729(89^82609+1)/90161036Paul Bourdelais10/2017
373035385^35385-17692^17692160960Henri Lifchitz10/2024
37312^534429-19160880Stefano Morozzi07/2022
37322^534359-23229160859Enzo Doria08/2013
373310^160836-1001160836Robert Price10/2022
3734457^60454+60454^457160803Norbert Schneider07/2021
37358*10^160782+53160783Robert Price08/2020
373667^88037-66^88037160763Robert Price10/2013
3737(88*10^160761-637)/9160762Robert Price11/2020
37382^533981+81160745Henri Lifchitz11/2024
37392^533948-1852559160735Enzo Doria08/2015
3740(2^769082)%F(769082)160728Henri Lifchitz05/2025
37412^533665-23335160650Enzo Doria08/2013
37422^533600+217981160630Enzo Doria01/2024
3743(19*10^160619+77)/3160620Robert Price05/2019
37442^533350-5160555Stefano Morozzi07/2022
3745(38*10^160508+151)/9160509Robert Price03/2022
37463^336353-2^336353160482Mike Oakes10/2007
374726134^36315-36315^26134160411Frank Doornink03/2024
374825821^36358-36358^25821160411Frank Doornink03/2024
37492*10^160339-63160340Robert Price01/2022
375024419^36532+36532^24419160293Norbert Schneider10/2023


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: September, 02 2025 19:01 (Time in France)

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