Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
90289183Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime
TF
No factors below 278
TF target 275
P-1
B1 = 785000
B2 = 19036250
PRP
StatusDateUserResidueShiftTypeBase
Unverified (Reliable)2019-12-19Ben Delo36EB80A9BD8616__1017457213
History
DateUserTypeResult
2024-05-16James HeinrichNF
no factor from 2^68 to 2^69
2021-07-06Smok_bmv NF
no factor from 2^77 to 2^78
2019-12-19Ben DeloC-PRP
36EB80A9BD8616__
PRP: Unverified (Reliable)
PRP without proof (not generated)
2019-01-27TheJudgerNF
no factor from 2^76 to 2^77
2019-01-14RuzovejNF-PM1
B1=785000, B2=19036250, e=4
2018-11-25TheJudgerNF
no factor from 2^75 to 2^76
2018-11-25TheJudgerNF
no factor from 2^74 to 2^75
2018-04-05Carsten KossendeyNF
no factor from 2^73 to 2^74
2016-10-31Carsten KossendeyNF
no factor from 2^72 to 2^73
2015-11-29Carsten KossendeyNF
no factor from 2^71 to 2^72
2014-11-18shaugeNF
no factor from 2^70 to 2^71
2013-11-26Carsten KossendeyNF
no factor from 2^69 to 2^70
2012-05-29Carsten KossendeyNF
no factor from 2^68 to 2^69
2011-09-11Carsten KossendeyNF
no factor from 2^67 to 2^68
2010-12-25Carsten KossendeyNF
no factor from 2^66 to 2^67
2010-09-20Carsten KossendeyNF
no factor from 2^65 to 2^66