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
101930519Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime
TF
No factors below 277
TF target 276
P-1
B1 = 805000
B2 = 15898750
PRP
StatusDateUserResidueShiftTypeBase
Unverified (Reliable)2020-05-21Ben Delo8B6E4BE4ED73D9__10132754313
History
DateUserTypeResult
2020-05-21Ben DeloC-PRP
8B6E4BE4ED73D9__
PRP: Unverified (Reliable)
PRP without proof (not generated)
2020-05-18Ben DeloNF-PM1
B1=805000, B2=15898750, E=12
2020-04-29TheJudgerNF
no factor from 2^76 to 2^77
2020-01-29TheJudgerNF
no factor from 2^75 to 2^76
2020-01-29TheJudgerNF
no factor from 2^74 to 2^75
2020-01-29TheJudgerNF
no factor from 2^73 to 2^74
2020-01-29TheJudgerNF
no factor from 2^72 to 2^73
2015-01-09shaugeNF
no factor from 2^71 to 2^72
2014-05-03SMoffatNF
no factor from 2^70 to 2^71
2014-04-29SMoffatNF
no factor from 2^69 to 2^70
2014-04-22Andreas_TruetschNF
no factor from 2^68 to 2^69
2014-04-03SMoffatNF
no factor from 2^67 to 2^68
2014-03-28Andreas_TruetschNF
no factor from 2^66 to 2^67
2012-04-19CandideNF
no factor from 2^65 to 2^66
2010-08-16Torchwood InstituteNF
no factor from 2^64 to 2^65
2010-03-181997rj7NF
no factor from 2^63 to 2^64