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
28545677Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 290000
B2 = 3625000
LL
StatusDateUserResidueShift
Verified2005-11-01Juergen MuellerAA375D88E8E52CCB24630772
Verified2011-12-01-Anonymous-AA375D88E8E52CCB10764082
History
DateUserTypeResult
2024-05-12James HeinrichNF
no factor from 2^68 to 2^69
2021-10-06TheJudgerNF
no factor from 2^74 to 2^75
2021-09-10TheJudgerNF
no factor from 2^73 to 2^74
2021-08-24TheJudgerNF
no factor from 2^72 to 2^73
2021-08-22TheJudgerNF
no factor from 2^71 to 2^72
2021-01-17mikrNF
no factor from 2^70 to 2^71
2017-04-17ramgeisNF
no factor from 2^69 to 2^70
2011-12-01-Anonymous-C-LL
AA375D88E8E52CCB
2011-11-15Carsten KossendeyNF
no factor from 2^68 to 2^69