PRP Records

Probable Primes Top 10000

(295107 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 ?
5501(7*2^388372-1)/111116911Lelio R Paula04/2014
5502(7*2^388335-1)/25116900Lelio R Paula04/2014
55032^388180+93116854Donovan Johnson07/2008
5504(2^388167+2510)/2116850Stefano Morozzi09/2020
5505(85*10^116842+293)/9116843Robert Price12/2019
550635296^2043+2043^35296116840Hans Havermann02/2021
5507(2^388081+7)/1179116821Lelio R Paula03/2014
550838633^1056+1056^38633116814Hans Havermann02/2021
55092^387946-113261116784Enzo Doria07/2014
551028*36^75009+305116739Eric Chen12/2022
551128363^13056+13056^28363116737Hans Havermann02/2021
55122^387745+75557116723Enzo Doria04/2016
5513(29*10^116719+313)/9116720Robert Price04/2021
551429622^8699+8699^29622116695Hans Havermann02/2021
5515(206*10^116687-17)/9116689Robert Price01/2020
5516(7*10^116684+179)/3116685Robert Price09/2018
55172^387554+71455116666Enzo Doria04/2016
5518(602*10^116647-71)/9116649Robert Price12/2021
55193^244461-10116638Tyler NeSmith09/2022
5520(2^387447+78557)/365116631Lelio R Paula12/2014
5521(2*10^116620+43)/9116620Serge Batalov11/2022
5522(19*10^116617+287)/9/12893116614Alfred Reich11/2022
5523(145*10^116610-1)/9116612Serge Batalov12/2014
5524(25*10^116601-331)/9116602Robert Price08/2018
552525791^26428-26428^25791116587Frank Doornink03/2024
5527(17*2^387284-1)/59116584Lelio R Paula04/2014
5526(2^387284+3726)/2116584Stefano Morozzi09/2020
55282^387211+111546435116563Paul Bourdelais10/2021
552910^116557+987654321116558Robert Price12/2019
553010^116557+9141116558Patrick De Geest02/2020
553110^116557-609431116557Patrick De Geest02/2020
5532(28*10^116546+41)/3116547Robert Price07/2021
5533(2^387123+1814)/2116536Stefano Morozzi02/2021
5534(2^387076+2046)/2116522Stefano Morozzi09/2020
5535(2^387073+2570)/2116521Stefano Morozzi09/2020
5536(7*10^116514-1)/3116515Robert Price08/2022
5537(26*32^77406-390071011)/31116508Eric Chen11/2023
553828846^10931+10931^28846116500Hans Havermann02/2021
553910^116496+3593037116497Paul Bourdelais10/2021
5540(31*2^386968+1)/7116490Lelio R Paula03/2014
55412^386947+1869143116483Enzo Doria05/2016
5542(30^78857-1)/29116480Robert Price12/2011
5543(2^386903-3)/5116469Lelio R Paula03/2014
554428107^13892+13892^28107116441Hans Havermann02/2021
554529110^9957+9957^29110116386Hans Havermann02/2021
554626469^24838+24838^26469116335Hans Havermann01/2021
55472^386389-1864783116315Enzo Doria03/2016
5548(8*32^77250-163)/31116273Eric Chen11/2023
5549(31*2^386231-1)/1711116266Lelio R Paula03/2014
5550297^47012+47012^297116250Norbert Schneider07/2018
5551(35*10^116223-341)/9116224Robert Price08/2021
5552(2^386087-5)/40959116220Lelio R Paula03/2014
5553(2^386054+714)/2116214Stefano Morozzi09/2020
5554(10^116201+7)/39623116197Alfred Reich06/2021
55552^385969-823116189Yves Minet05/2012
555657^66162+2116173Lelio R Paula08/2013
55572^385854+75049116154Enzo Doria04/2016
5558(2^385832+2590)/2116147Stefano Morozzi09/2020
55592^385775-109587116130Enzo Doria04/2014
5560(14*10^116112-101)/3116113Robert Price02/2019
5561Phi(236354,10)/24817171116109Makoto Kamada08/2019
55623*10^116107+23116108Robert Price03/2022
556328729^10990+10990^28729116094Hans Havermann02/2021
55642^385622+71839116084Enzo Doria04/2016
55662^385564+781116067Lelio R Paula01/2012
5565(2^385565+1562)/2116067Stefano Morozzi09/2020
5567(2^385563+378)/2116066Stefano Morozzi02/2021
5568(2^385557+2214)/2116064Stefano Morozzi09/2020
556929431^8776+8776^29431116056Hans Havermann01/2021
5570(266*10^116024-17)/3116026Robert Price07/2020
557130263^6820+6820^30263116022Hans Havermann02/2021
55722^385410+71893116020Enzo Doria04/2016
557338225^1084+1084^38225116014Hans Havermann02/2021
557426548^23433+23433^26548116011Hans Havermann02/2021
557512^107422-11115928Riley Fisher12/2023
5576(25*2^385091+1)/27115924Lelio R Paula04/2014
5577(11*10^115910-131)/3115911Robert Price09/2018
55782^384953-111943115883Paul Bourdelais02/2012
557943^70942-2115882Lelio R Paula04/2014
5580(94*10^115879-7)/3115881Robert Price03/2020
55817*10^115863+3115864Robert Price08/2015
55822^384834+93115847Donovan Johnson07/2008
55832^384809+71297115840Enzo Doria04/2016
5584(55*10^115829+323)/9115830Robert Price10/2021
5585(7*2^384759-1)/5115825Lelio R Paula04/2014
558631348^4951+4951^31348115822Hans Havermann02/2021
5587(793*10^115810+53)/9115812Robert Price01/2022
5588(71*10^115810-17)/9115811Ray Chandler08/2011
5589(97*10^115794-1)/3115796Serge Batalov12/2014
559031115^5266+5266^31115115794Hans Havermann02/2021
55912*10^115784-27115785Robert Price05/2018
559210^115773+126739115774Patrick De Geest04/2018
559410^115773-1000000001115773Robert Price03/2018
559310^115773-396221115773Patrick De Geest04/2018
5595(2^384582+778)/2115771Stefano Morozzi09/2020
559630537^6178+6178^30537115762Hans Havermann01/2021
55972^384530+1874305115756Enzo Doria06/2016
5598(3*2^384524-1)/7631115750Lelio R Paula03/2014
559928275^12406+12406^28275115748Hans Havermann01/2021
5600(44*10^115697-413)/9115698Robert Price03/2019
560131408^4825+4825^31408115692Hans Havermann02/2021
5602(2^384317+1026)/2115691Stefano Morozzi09/2020
56032^384312+81091115690Yves Minet02/2010
5604(2^384265+2150)/2115675Stefano Morozzi09/2020
5605(2^384246+2182)/2115670Stefano Morozzi09/2020
5606(4*10^115668-79)/3115669Robert Price02/2018
5607(2^384193+242)/2115654Stefano Morozzi09/2020
5608(266947#+1267)/(7^2*181)115647Makoto Morimoto06/2019
5609(266947#+273808)/(2*109*157)115646Makoto Morimoto10/2017
561018^92125-92125^18115642Dylan Delgado08/2019
56113^242337-4042115625Enzo Doria05/2014
5612(2^383931+674)/2115575Stefano Morozzi09/2020
56137*10^115561+79115562Robert Price07/2019
5614(2^383872+3046)/2115557Stefano Morozzi09/2020
5615(11*2^383859-13)/15115553Renaud Lifchitz03/2011
56162^383780-3149115530Yves Minet10/2014
5617(41*10^115523-383)/9115524Robert Price11/2018
561827316^16923+16923^27316115506Hans Havermann02/2021
5619(2^383618+618)/2115481Stefano Morozzi09/2020
56202^383560-455115464Yves Minet03/2012
5621(2^383544+5)/3115458Lelio R Paula03/2014
5622(22*10^115454+119)/3115455Robert Price04/2021
562389^59221-88^59221115445Robert Price06/2015
5624(7^136559-5^136559)/2115406Jon Grantham08/2023
56252^383347+1869413115399Enzo Doria05/2016
5626(103*10^115366+17)/3115368Robert Price08/2020
5627(2^383232+750)/2115365Stefano Morozzi09/2020
5628(2^383130-7)/131793115329Lelio R Paula03/2014
5629(12^106859+1)/13115320Paul Bourdelais02/2010
563029961^7060+7060^29961115315Hans Havermann01/2021
56322^383039+1869509115307Enzo Doria05/2016
563132918^3183+3183^32918115307Hans Havermann01/2021
563336964^1315+1315^36964115288Hans Havermann02/2021
5634(13*2^382968+1)/7115286Lelio R Paula04/2014
5635(22*10^115282+29)/3115283Robert Price02/2021
5636(2^382945+2046)/2115278Stefano Morozzi09/2020
5637(2^382789+3182)/2115231Stefano Morozzi09/2020
563830416^6141+6141^30416115224Hans Havermann02/2021
56396*10^115211+79115212Robert Price09/2020
5640(2^382722+3598)/2115211Stefano Morozzi09/2020
564127987^13078+13078^27987115210Hans Havermann02/2021
5642(2^382699+2090)/2115204Stefano Morozzi09/2020
5643(22*10^115188-193)/9115189Robert Price07/2022
56442^382633+73697115185Enzo Doria04/2016
56452^382509-113593115147Enzo Doria08/2014
56462^382502-2791721115145Enzo Doria03/2016
5647(2^382495+1274)/2115143Stefano Morozzi01/2021
56482^382464+22741115134Enzo Doria09/2023
564926752^20065+20065^26752115099Hans Havermann02/2021
565026383^23008+23008^26383115080Hans Havermann02/2021
56519^120590-120590115073Robert Price03/2014
565228203^12016+12016^28203115062Hans Havermann02/2021
56532^382198+9115054Lelio R Paula03/2013
565430101^6630+6630^30101115032Hans Havermann01/2021
5655(89*10^115030-179)/9115031Robert Price12/2019
565625554^26089-26089^25554114987Frank Doornink02/2024
565725142^26129-26129^25142114979Frank Doornink12/2023
5658(2^381935+2774)/2114974Stefano Morozzi02/2021
565927300^16271+16271^27300114972Hans Havermann02/2021
5660(23*10^114962+7)/3114963Robert Price05/2023
56612^381883-59197114959Enzo Doria10/2015
566227423^15542+15542^27423114944Hans Havermann02/2021
5663(2^381820+1626)/2114939Stefano Morozzi09/2020
56652^381806-4481114936Yves Minet07/2011
56642^381808-1851507114936Enzo Doria08/2015
5666(2^381792+2502)/2114931Stefano Morozzi09/2020
56672^381774-112373114926Enzo Doria06/2014
566826341^22980+22980^26341114883Hans Havermann01/2021
56692^381555-109051114860Enzo Doria04/2014
56702^381551+213683114859Enzo Doria09/2023
56712^381546-113501114857Enzo Doria08/2014
5672(7*10^114845-19)/3114846Robert Price10/2020
567326675^20178+20178^26675114833Hans Havermann02/2021
5674(2^381436+1182)/2114824Stefano Morozzi09/2020
56753^240644+16114817Robert Price04/2020
56762^381360-110429114801Enzo Doria05/2014
5677(17*10^114795+79)/3114796Robert Price04/2019
5678(66^63079+1)/67114774Paul Bourdelais09/2017
56792^381252-115079114769Enzo Doria06/2015
5680(2^381251+3186)/2114768Stefano Morozzi09/2020
56812^381209-29323114756Enzo Doria07/2015
56822^381207-111546435114755Paul Bourdelais10/2021
5683569^41651-568^41651114754Jean-Louis Charton11/2009
56842^381201+1873205114753Enzo Doria06/2016
5685(85*10^114737+293)/9114738Robert Price12/2019
5686(265*10^114736+17)/3114738Robert Price03/2020
5687(2^381062+2170)/2114711Stefano Morozzi09/2020
56882^380974-112991114685Enzo Doria07/2014
568937097^1234+1234^37097114679Hans Havermann02/2021
5690(26*10^114658-119)/3114659Robert Price07/2023
569188^58949-87114626Norbert Schneider11/2015
5692(2^380773+662)/2114624Stefano Morozzi09/2020
5693Phi(155285,10)/242674820198201114610Makoto Kamada02/2024
569429913^6782+6782^29913114608Hans Havermann02/2021
5695(331*10^114605-7)/9114607Robert Price04/2022
56962^380700+91114603Lelio R Paula03/2013
5697(2^380632+2578)/2114582Stefano Morozzi09/2020
56987*10^114577+27114578Robert Price11/2020
570010^114575+3^114576114576Mike Oakes09/2010
569910^114575+66561114576Patrick De Geest02/2017
570110^114575-581081114575Patrick De Geest02/2017
57022^380587-115315114569Enzo Doria06/2015
570331874^3927+3927^31874114558Hans Havermann02/2021
57042^380513-216925114546Enzo Doria05/2014
57052^380451-1840087114528Enzo Doria06/2015
5706(2^380426+1510)/2114520Stefano Morozzi09/2020
5707(15*2^380388-1)/539114507Lelio R Paula04/2014
57082^380279-461347114476Enzo Doria07/2015
5709(331*10^114454-7)/9114456Robert Price04/2022
571027121^16590+16590^27121114447Hans Havermann01/2021
571125966^25555+25555^25966114445Hans Havermann01/2021
5712(611*32^76029-53)/31114437Eric Chen11/2023
5713(11*10^114400+529)/9114401Robert Price09/2021
57142^380021+1871147114398Enzo Doria05/2016
57152^380005+1869707114393Enzo Doria05/2016
57162^379958-113297114379Enzo Doria07/2014
5717(2^379897+1274)/2114361Stefano Morozzi01/2021
57182^379881-109105114356Enzo Doria04/2014
5719(21*2^379857-1)/13114349Lelio R Paula03/2014
5720(4*10^114340+83)/3114341Robert Price02/2018
5721(26*10^114317-77)/3114318Robert Price11/2019
5722(4*10^114296+149)/9114296Robert Price04/2018
572388^58773-87114284Norbert Schneider11/2015
572427764^13065+13065^27764114280Hans Havermann01/2021
57252^379529-2790283114250Enzo Doria03/2016
57262^379522+1869115114248Enzo Doria05/2016
5727(145*10^114226-1)/9114228Serge Batalov12/2014
57282^379317-115033114186Enzo Doria06/2015
5729(22*10^114178+47)/3114179Robert Price06/2021
5730(17*2^379246-1)/17407114162Lelio R Paula03/2014
5731(2^379192+226)/2114148Stefano Morozzi09/2020
5732(228^48407-1)/227114139Alexander Zhirkov03/2023
57336*10^114091+23114092Robert Price09/2020
5734(4*10^114076+143)/3114077Robert Price03/2018
5735332*25^81584+12357114053Eric Chen10/2023
5736(2^378820+3226)/2114036Stefano Morozzi01/2021
5737(2^378754+2058)/2114017Stefano Morozzi09/2020
573813643^27572-27572^13643114008Norbert Schneider12/2022
5740(46*10^113969+683)/9113970Robert Price03/2019
5739(83*10^113969+133)/9113970Robert Price08/2021
574132226^3439+3439^32226113966Hans Havermann02/2021
5742(77*10^113963-149)/9113964Robert Price03/2022
574378*10^113954-7113956Robert Price10/2020
57442*10^113941+9113942Dmitry Domanov11/2010
574510^113933+145897113934Patrick De Geest02/2021
5748(2^378478+1642)/2113933Stefano Morozzi09/2020
574610^113933-8000000001113933Robert Price11/2020
574710^113933-66167113933Patrick De Geest02/2021
57492339662057597*10^113903+9113916Robert Price03/2021
57504*10^113905+91113906Robert Price08/2018


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: May, 05 2024 11:19 (Time in France)

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