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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
31679231Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 271
P-1
B1 = 510000
B2 = 9690000
LL
StatusDateUserResidueShift
Verified2006-05-29C. Cooper / S. Boone4BD702A09B0E8CD024327987
Verified2014-03-03monst4BD702A09B0E8CD0155416
History
DateUserTypeResult
2024-05-21James HeinrichNF
no factor from 2^68 to 2^69
2020-05-14Architects CubedNF-PM1
B1=510000, B2=9690000, E=12
2020-04-09-Anonymous-NF
no factor from 2^73 to 2^74
2019-11-29-Anonymous-NF
no factor from 2^72 to 2^73
2019-11-29-Anonymous-NF
no factor from 2^71 to 2^72
2018-10-26ramgeisNF
no factor from 2^70 to 2^71
2014-03-03monstC-LL
4BD702A09B0E8CD0
2013-04-07bcp19NF
no factor from 2^69 to 2^70
2012-06-15Carsten KossendeyNF
no factor from 2^68 to 2^69