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
25473263Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 2000000
B2 = 5009675580
LL
StatusDateUserResidueShift
Verified2005-05-28Mickey KramerC6A7E5861E797FC619382178
Verified2011-02-06Fred CireraC6A7E5861E797FC64173572
History
DateUserTypeResult
2024-10-14timc995NF-PM1
B1=2000000, B2=5009675580
2021-10-19TheJudgerNF
no factor from 2^74 to 2^75
2021-09-30TheJudgerNF
no factor from 2^73 to 2^74
2021-08-28TheJudgerNF
no factor from 2^72 to 2^73
2021-08-28TheJudgerNF
no factor from 2^71 to 2^72
2021-06-21mikrNF
no factor from 2^70 to 2^71
2017-06-02ramgeisNF
no factor from 2^69 to 2^70
2017-06-02ramgeisNF
no factor from 2^68 to 2^69
2016-01-15VictordeHollanderNF
no factor from 2^67 to 2^68
2011-02-06Fred CireraC-LL
C6A7E5861E797FC6