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
20939383Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 250000
B2 = 5562500
LL
StatusDateUserResidueShift
Verified2004-03-26Tamas Somogyvari2652768F2FA8ED4115949776
Verified2008-09-24Marcus Spradlin2652768F2FA8ED414404172
History
DateUserTypeResult
2021-11-01-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-01-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-14SRBaseNF
no factor from 2^70 to 2^71
2017-12-14YxinityNF
no factor from 2^69 to 2^70
2017-09-28VictordeHollanderNF
no factor from 2^68 to 2^69
2017-04-21ramgeisNF
no factor from 2^67 to 2^68
2015-04-03NRNF
no factor from 2^66 to 2^67