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
61551031TF
No factors below 276
TF target 274
P-1
B1 = 1000000
B2 = 30000000
LL
StatusDateUserResidueShift
Verified2013-09-18curtisc3812071B03097D272822421
Bad2021-07-08Dmitriy Degtiarev500F54123D1E70E641868487
Verified2021-08-29ZacHFX3812071B03097D276570064
History
DateUserTypeResult
2021-08-29ZacHFXC-LL
3812071B03097D27
2021-08-12riccardo ubertiNF-PM1
B1=1000000, B2=30000000, E=12
2021-07-13MadPooNF
no factor from 2^75 to 2^76
2021-07-11MadPooNF
no factor from 2^74 to 2^75
2021-07-08Dmitriy DegtiarevC-LL
500F54123D1E70E6
2016-02-25Judge HaleNF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2013-09-18curtiscC-LL
3812071B03097D27
2013-02-15JAMCNF-PM1
B1=580000, B2=11745000, E=6
2013-02-13garoNF
no factor from 2^72 to 2^73
2013-02-13garoNF
no factor from 2^71 to 2^72
2013-02-13garoNF
no factor from 2^70 to 2^71
2011-11-15-Anonymous-NF
no factor from 2^69 to 2^70
2010-02-07-Anonymous-NF
no factor from 2^68 to 2^69
2010-02-03-Anonymous-NF
no factor from 2^67 to 2^68
2009-10-01namjoshiNF
no factor from 2^66 to 2^67
2009-09-27Sturle SundeNF
no factor from 2^65 to 2^66
2009-09-27PVasilevNF
no factor from 2^64 to 2^65
2009-04-18markrNF
no factor from 2^63 to 2^64