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
38532001Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 460000
B2 = 12535000
LL
StatusDateUserResidueShift
Verified2008-03-05Rich Jacot82D3E66BD58788292783127
Verified2017-01-09endless_mike82D3E66BD587882917685265
History
DateUserTypeResult
2024-05-21James HeinrichNF
no factor from 2^68 to 2^69
2022-06-11Sid & AndyNF
no factor from 2^72 to 2^73
2019-03-07monstNF
no factor from 2^71 to 2^72
2017-01-09endless_mikeC-LL
82D3E66BD5878829
2014-12-06monstNF
no factor from 2^70 to 2^71
2014-05-20mikrNF
no factor from 2^69 to 2^70
2012-09-25Carsten KossendeyNF
no factor from 2^68 to 2^69