PRP Records

Probable Primes Top 10000

(301996 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 ?
3001(14*10^188218+139)/9188219Robert Price11/2021
300240760^40821-40821^40760188195Norbert Schneider07/2024
3003(10^188164+359)/9188164Serge Batalov12/2014
30042^624481-113611187988Enzo Doria08/2014
3005(2^624389+125582)/2187960Stefano Morozzi09/2019
3006(2^624389+166982)/2187960Stefano Morozzi09/2019
3007(2^624389+179886)/2187960Stefano Morozzi09/2019
3008(2^624387+64466)/2187959Stefano Morozzi09/2019
3009(2^624378+112990)/2187957Stefano Morozzi09/2019
3010(2^624380+161986)/2187957Stefano Morozzi09/2019
3012(2^624376+55762)/2187956Stefano Morozzi09/2019
3011(2^624377+169506)/2187956Stefano Morozzi09/2019
3013(2^624355+80178)/2187950Stefano Morozzi09/2019
3014(2^624351+61350)/2187949Stefano Morozzi09/2019
3015(2^624341+63462)/2187946Stefano Morozzi09/2019
3016(2^624344+135990)/2187946Stefano Morozzi09/2019
3017(2^624344+183898)/2187946Stefano Morozzi09/2019
3019(2^624340+126982)/2187945Stefano Morozzi09/2019
3018(2^624338+196110)/2187945Stefano Morozzi09/2019
3020(2^624337+105162)/2187944Stefano Morozzi09/2019
3021(2^624333+44594)/2187943Stefano Morozzi09/2019
3022(2^624321+88742)/2187940Stefano Morozzi09/2019
3023(2^624324+135178)/2187940Stefano Morozzi09/2019
3024(2^624317+14186)/2187938Stefano Morozzi09/2019
3025(2^624313+24450)/2187937Stefano Morozzi09/2019
3026(2^624309+184590)/2187936Stefano Morozzi09/2019
3028(2^624307+152658)/2187935Stefano Morozzi09/2019
3027(2^624307+185978)/2187935Stefano Morozzi09/2019
3029(2^624303+40814)/2187934Stefano Morozzi09/2019
3030(2^624304+99238)/2187934Stefano Morozzi09/2019
30312^624077-112723187866Enzo Doria07/2014
30322^624008+1874941187846Enzo Doria06/2016
30332^623870+78679187804Enzo Doria05/2016
30342^623714-114035187757Enzo Doria11/2014
30352^623651-1834251187738Enzo Doria07/2015
3036(7*10^187645+53)/3187646Robert Price05/2018
303721650^43269+43269^21650187591Norbert Schneider02/2023
30382^623146+1879609187586Enzo Doria09/2016
3039(401*10^187512+13)/9187514Robert Price09/2021
3040(5*10^187471+91)/3187472Robert Price04/2018
30412^622500+81931187392Enzo Doria08/2016
3042(13*10^187382-157)/9187383Robert Price05/2021
30432^622300-1861739187331Enzo Doria12/2015
3044(22*10^187317-91)/3187318Robert Price02/2022
3045(38*10^187281+349)/9187282Robert Price10/2018
30462^622052+76771187257Enzo Doria05/2016
30472^622005-24091187243Enzo Doria08/2013
30487*10^187205-57187206Robert Price06/2020
30492^621879-351787187205Enzo Doria07/2015
3050(5*10^187168-53)/3187169Robert Price09/2020
3051(23*10^187164-143)/3187165Robert Price12/2019
30522^621700+79411187151Enzo Doria06/2016
30532^621597+39187120Jon Grantham08/2023
3054(7*10^187101+131)/3187102Robert Price06/2020
3055(2*10^187062-71)/3187062Robert Price12/2017
3056V(1118570)187013Serge Batalov07/2024
30572^620929-113203186919Enzo Doria07/2014
305810^186842+168223186843Patrick De Geest07/2018
305910^186842-8001186842Robert Price03/2018
3060V(1117640)/13411681/26823361/575709775681/989889277441186814Serge Batalov07/2024
30612^620347-1777186744Lelio R Paula07/2013
3062(11*10^186659+133)/9186660Robert Price04/2022
306311^179143-4170186559Enzo Doria12/2012
3064(13^186535)%(10^186535)186535Henri Lifchitz05/2025
3065(5^266863+1)/6186529Paul Bourdelais07/2010
30662*10^186517+33186518Robert Price11/2021
30672^619297-2792353186427Enzo Doria02/2016
3068(49*10^186409+383)/9186410Robert Price04/2019
30692^618940-460139186320Enzo Doria06/2015
30702^618046+74179186051Enzo Doria04/2016
30713*10^186019+11186020Robert Price07/2018
3072(16*10^185978-19)/3185979Robert Price02/2019
3073(22*10^185950-7)/3185951Robert Price12/2022
30742*10^185930-3185931Robert Price07/2015
3075(82^97151+1)/83185928Paul Bourdelais10/2017
30764*10^185905+91185906Robert Price08/2018
3077(34*10^185902-601)/9185903Robert Price07/2022
3078(19*10^185873+131)/3185874Robert Price06/2020
3079(37*10^185811+377)/9185812Robert Price11/2018
30802^617250+9385185811Lelio R Paula07/2013
30812^617130+9185775Stefano Morozzi05/2021
308239^116749+2185756Robert Price04/2015
30832^616924-39719185713Enzo Doria09/2015
30842^616712+1867621185649Enzo Doria04/2016
3085(3^388897+2^388897)/5185551Jean-Louis Charton09/2011
30868*10^185529-67185530Robert Price08/2019
3087(5*10^185520-11)/3185521Tyler Busby02/2023
30885*2^616124+3185473Jon Grantham07/2023
30892^615916+26791185410Enzo Doria12/2023
30904*10^185355+9185356Robert Price05/2015
3091(16*10^185347+89)/3185348Robert Price03/2021
309240247^40247-56^56185327Henri Lifchitz08/2024
30932^615622+76639185321Enzo Doria05/2016
30942^615591+1879223185312Enzo Doria08/2016
30952^615587+217013185311Enzo Doria12/2023
30962^615503+1876643185285Enzo Doria07/2016
30975^265007-4^265007185232Jean-Louis Charton02/2013
3098(4*10^185221-91)/3185222Robert Price03/2018
3099(7*10^185221+131)/3185222Robert Price06/2020
3100(62*10^185216-413)/9185217Robert Price09/2021
3101(232*10^185180+17)/3185182Robert Price04/2021
310256*10^185139-3185141Robert Price03/2020
3103(28*10^185105+47)/3185106Robert Price02/2021
31042^614783-2790097185069Enzo Doria12/2015
31052^614745-29323185057Enzo Doria07/2015
3106(((((((((((2^3+3)^3+30)^3+6)^3+80)^3+12)^3+450)^3+894)^3+3636)^3+70756)^3+97220)^3+66768)^3+300840185052Serge Batalov07/2013
3107(49*10^184993-67)/9184994Robert Price03/2019
3108(5*10^184954-191)/3184955Robert Price05/2021
3109(14*10^184950+211)/9184951Robert Price04/2018
31102^614360+215221184941Enzo Doria11/2023
31112^614315+81353184928Enzo Doria08/2016
31122^614294-1849961184921Enzo Doria08/2015
31132^614266+1877809184913Enzo Doria08/2016
3114(185*10^184878-11)/3184880Robert Price10/2020
311591*10^184867-9184869Robert Price06/2021
3116(37^117841-1)/581320056003516184784Paul Vanderveen06/2025
311739803^40170-40170^39803184779Norbert Schneider05/2024
3118(14789^44521-1)/(14789^211-1)184770Ryan Propper11/2023
3119(85*10^184768+77)/9184769Robert Price07/2022
31202^613715-1860727184747Enzo Doria11/2015
3121(4*10^184730+89)/3184731Robert Price08/2021
31222*10^184723+41184724Robert Price05/2018
3123(49*10^184703+293)/9184704Robert Price03/2021
31242^613487-349987184678Enzo Doria07/2015
3125(95^93377+1)/96184672Paul Bourdelais11/2017
312614^161089-161089^14184629Serge Batalov05/2016
312740008^40109-40109^40008184588Norbert Schneider05/2024
31282^613033-114621184542Enzo Doria05/2015
31293*2^612759+5184460Jon Grantham07/2023
31302^612587+213413184408Enzo Doria09/2023
3131(9^193247+1)/10184404Paul Bourdelais02/2010
31322^612424+212341184358Enzo Doria08/2023
31332^612341-1604809184334Enzo Doria05/2015
3134(11*10^184308-161)/3184309Robert Price11/2021
3135(2^611999-1)/18464214225958267477777390354183184199Dario Alpern06/2017
3136(14*10^184150+37)/3184151Robert Price12/2018
31372^611731-4837184150Yves Minet08/2018
31383*10^184124-7184125Robert Price08/2015
31392^611644+29371184124Enzo Doria02/2024
31409*10^184122-11184123Mischa Rodermond04/2023
31412^611628-24537184119Enzo Doria08/2013
31423*10^184110+13184111Robert Price07/2018
3143(14280^44521-1)/(14280^211-1)184097Ryan Propper11/2023
3144(194*10^184093+1)/3184095Robert Price01/2022
31452^611460+71881184068Enzo Doria04/2016
31464*10^184004-63184005Robert Price10/2018
31472^611111+84083183963Boyan Hu05/2024
31482^610982-1867301183924Enzo Doria03/2016
3149(10^183917+1)/11/9952852373183906Alfred Reich02/2024
31503*10^183872-49183873Robert Price07/2018
31512^610597+1178897183809Enzo Doria05/2016
3152(8*10^183773-269)/9183773Robert Price09/2021
3153(65*10^183768-29)/9183769Robert Price01/2021
3154(17*10^183764+31)/3183765Robert Price01/2019
3155(28*10^183760-1)/9183761Serge Batalov10/2014
31562^610401+1277183750Lelio R Paula07/2013
31572^610356-1849019183736Enzo Doria08/2015
3158(63^102103+1)/64183717Paul Bourdelais10/2017
315923*10^183710-7183712Robert Price02/2020
3160(2^610289+1)/(3*528882550291)183704Gord Palameta08/2018
3161(4*10^183659+149)/9183659Robert Price04/2018
3162(4*10^183657+41)/9183657Serge Batalov11/2022
3163(11^176327-1)/31738870183619Paul Vanderveen05/2025
31647*10^183596+39183597Robert Price01/2023
31652^609846-1834251183582Enzo Doria07/2015
316610^183546+1547323183547Patrick De Geest02/2021
316810^183546-800000001183546Robert Price09/2020
316710^183546-584297183546Patrick De Geest02/2021
31697*10^183511+39183512Robert Price01/2023
3170(23*10^183477-71)/3183478Robert Price07/2020
317111^176176-240183469Enzo Doria11/2012
3172(41^113749+1)/42183451Paul Bourdelais11/2017
31736*10^183429+53183430Robert Price05/2020
3174(28*10^183403+191)/3183404Robert Price02/2020
3175U(1096855)183383Serge Batalov07/2024
3176(5^262337-1)/363486427756606700767551233751524443601036183325Paul Vanderveen05/2025
3177(101^91463+1)/102183320Paul Bourdelais11/2017
31782^608965-113989183317Enzo Doria10/2014
3179A005165(43592)183312Serge Batalov07/2017
3180(61*10^183294+119)/9183295Robert Price05/2019
31812^608814-461261183272Enzo Doria06/2015
3182(163*10^183227-1)/9183229Serge Batalov12/2014
31832^608541-608541^2183190Henri Lifchitz02/2018
31842^608293+143807183115Enzo Doria10/2016
31852^608164-462419183076Enzo Doria08/2015
31862^607950-1862303183012Enzo Doria12/2015
31875*3^383376+2^383376182918Jon Grantham08/2023
3188(46*10^182896+683)/9182897Robert Price03/2019
3189(2*10^182787+73)/3182787Robert Price09/2020
31902^607101+1871987182756Enzo Doria05/2016
31912^606869-69175182686Enzo Doria11/2015
31928*10^182671+71182672Robert Price05/2022
3193(23*10^182666-71)/3182667Robert Price07/2020
31943*10^182614-11182615Robert Price07/2018
31952^606560-357182593Enzo Doria05/2014
319666*10^182420+7182422Robert Price07/2020
31972^605687+1866983182330Enzo Doria03/2016
31982^605655-114445182321Enzo Doria02/2015
319994*10^182291-3182293Robert Price05/2020
3200(20^140053+1)/21182212Paul Bourdelais04/2010
3201(14*10^182177-221)/9182178Robert Price04/2018
32022^605174-112751182176Enzo Doria06/2014
3203(905^61609-1)/904182154Anonymous05/2024
32042^604761+1874507182052Enzo Doria06/2016
32052^604705+1871957182035Enzo Doria05/2016
3206(14*10^182000+229)/9182001Robert Price03/2018
3207(10^181996+41)/3181996Robert Price12/2017
3208(17*10^181979+91)/9181980Robert Price02/2022
3209(10^181960+3)/7181960Jinyuan Wang11/2024
3210(5*10^181950-101)/3181951Robert Price04/2018
32112^603915+75233181797Enzo Doria04/2016
321239470^39537+39537^39470181723Norbert Schneider12/2022
3213(10^181710+7)/563747/2019847181698Alfred Reich08/2021
32147*10^181594-57181595Robert Price06/2020
32158*10^181580+29181581Robert Price11/2021
3216(83*10^181544+61)/9181545Serge Batalov01/2023
3217(2*10^181457+7)/9181457Rytis Slatkevicius01/2023
32183*10^181445+23181446Robert Price03/2022
3219(194*10^181369-11)/3181371Robert Price09/2020
322011^174145-360181354Enzo Doria10/2012
32212^602351-396765181326Enzo Doria08/2013
32226*10^181306+17181307Robert Price04/2019
3223(353^71143-1)/352181254Anonymous04/2024
3224(286*10^181220-1)/3181222Robert Price11/2020
32252^601957-113833181208Enzo Doria09/2014
322666^99581-65^99581181193Robert Price09/2013
322710^181182+383973181183Patrick De Geest04/2016
322810^181182-21181182Serge Batalov12/2014
3229(797*10^181171-41)/9181173Robert Price04/2022
32302^601722+74209181137Enzo Doria08/2023
3231(5*10^181127-29)/3181128Robert Price03/2018
32322^601521-29143181076Enzo Doria07/2015
32332^601442-2797811181053Enzo Doria04/2016
323444*10^181029+3181031Robert Price04/2020
32355*10^180992-9180993Robert Price05/2015
323610^180979+79477180980Patrick De Geest04/2016
323710^180979+107739180980Patrick De Geest04/2016
323810^180979-11180979Serge Batalov12/2014
32392^601023-113851180926Enzo Doria10/2014
3240(23*10^180862-143)/3180863Robert Price12/2019
32413*10^180852+29180853Robert Price05/2018
3242(277*10^180782-7)/9180784Robert Price02/2022
32432^600412+29851180743Enzo Doria03/2024
3244(8*10^180725-629)/9180725Robert Price01/2022
3245(79*10^180710-1)/3180712Robert Price02/2020
32462^600300-1852559180709Enzo Doria08/2015
3247(2*10^180706-77)/3180706Robert Price02/2021
3248(156^82393-1)/155180696Anonymous06/2024
3249(10^180689+71)/9180689Serge Batalov07/2015
32502^600209+76487180681Enzo Doria05/2016


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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: November, 24 2025 17:58 (Time in France)

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