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
41201929Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 455000
B2 = 6597500
LL
StatusDateUserResidueShift
Verified2008-10-292knarf167F91D95DEDE9FD15599806
Verified2017-06-13Evgeniy Zavialov167F91D95DEDE9FD28097816
History
DateUserTypeResult
2024-06-14James HeinrichNF
no factor from 2^68 to 2^69
2022-05-04Sid & AndyNF
no factor from 2^72 to 2^73
2017-06-13Evgeniy ZavialovC-LL
167F91D95DEDE9FD
2015-07-07tigreroarsNF
no factor from 2^71 to 2^72
2015-01-05chalsallNF
no factor from 2^70 to 2^71
2014-12-27Architects CubedNF
no factor from 2^69 to 2^70
2013-12-12Carsten KossendeyNF
no factor from 2^68 to 2^69
2008-10-292knarfC-LL
167F91D95DEDE9FD