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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Exponent Range:










MnStatusDetails
75557617Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 655000
B2 = 13100000
LL
StatusDateUserResidueShift
Verified2017-10-10Dmitriy Degtiarev05A08A8525D9189E4553944
Verified2024-10-26Nelprat05A08A8525D9189E44636081
History
DateUserTypeResult
2024-10-26NelpratC-LL
05A08A8525D9189E
2017-10-10Dmitriy DegtiarevC-LL
05A08A8525D9189E
2016-03-16taffaNF-PM1
B1=655000, B2=13100000, E=6
2016-03-15Jerry HallettNF
no factor from 2^74 to 2^75
2016-02-11James HeinrichNF
no factor from 2^73 to 2^74
2015-09-06Judge HaleNF
no factor from 2^72 to 2^73
2015-09-06Judge HaleNF
no factor from 2^71 to 2^72
2014-08-07TSRPrimeNF
no factor from 2^70 to 2^71
2014-02-26SMoffatNF
no factor from 2^69 to 2^70
2010-10-13arnaudNF
no factor from 2^68 to 2^69
2010-10-07-Anonymous-NF
no factor from 2^67 to 2^68
2010-08-02S36049NF
no factor from 2^66 to 2^67
2010-07-30S36049NF
no factor from 2^65 to 2^66