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
19966757Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 1000000
B2 = 322538580
LL
StatusDateUserResidueShift
Verified2003-07-30John Johnson7E5EA44DCBCF7AD16925335
Verified2008-08-07joe 7E5EA44DCBCF7AD1796981
History
DateUserTypeResult
2022-03-11Sid & AndyNF-PM1
B1=1000000, B2=322538580
2021-11-14-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-01-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-13SRBaseNF
no factor from 2^70 to 2^71
2019-09-19YxinityNF
no factor from 2^69 to 2^70
2017-11-30ramgeisNF
no factor from 2^68 to 2^69
2013-08-14NesowaNF
no factor from 2^67 to 2^68
2013-08-14NesowaNF
no factor from 2^66 to 2^67