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
21914329Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 269
P-1
B1 = 255000
B2 = 5036250
LL
StatusDateUserResidueShift
Verified2004-05-11Steve Wateridge4BFAB98E2351EB2A10988957
Verified2009-05-01Chang Chia-Tche4BFAB98E2351EB2A12544728
History
DateUserTypeResult
2021-12-04Sid & AndyNF
no factor from 2^74 to 2^75
2021-10-02TheJudgerNF
no factor from 2^73 to 2^74
2021-09-06TheJudgerNF
no factor from 2^72 to 2^73
2021-09-06TheJudgerNF
no factor from 2^71 to 2^72
2021-09-06TheJudgerNF
no factor from 2^70 to 2^71
2018-04-15ramgeisNF
no factor from 2^69 to 2^70
2017-12-04VictordeHollanderNF
no factor from 2^68 to 2^69
2017-04-28ramgeisNF
no factor from 2^67 to 2^68
2009-05-01Chang Chia-TcheC-LL
4BFAB98E2351EB2A