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
62508619Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 274
P-1
B1 = 1250000
B2 = 37500000
LL
StatusDateUserResidueShift
Verified2014-05-01ulamE4ABA95C424CDB1C34229577
Verified2022-10-18jpldudesE4ABA95C424CDB1C16909503
History
DateUserTypeResult
2022-10-18jpldudesC-LL
E4ABA95C424CDB1C
2022-09-18riccardo ubertiNF-PM1
B1=1250000, B2=37500000
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-05-01ulamC-LL
E4ABA95C424CDB1C
2013-11-17TheJudgerNF
no factor from 2^73 to 2^74
2013-04-02Brian ChanNF-PM1
B1=590000, B2=11505000
2013-03-20AllRandomNF
no factor from 2^72 to 2^73
2013-03-20AllRandomNF
no factor from 2^71 to 2^72
2013-02-16lycornNF
no factor from 2^70 to 2^71
2012-04-21debrouxlNF
no factor from 2^69 to 2^70
2009-08-27kutensNF
no factor from 2^68 to 2^69
2009-08-23lindeeNF
no factor from 2^67 to 2^68
2009-08-15arnaudNF
no factor from 2^66 to 2^67
2009-08-09-Anonymous-NF
no factor from 2^65 to 2^66
2009-02-18glennpatNF
no factor from 2^64 to 2^65
2009-01-21Wojciech FlorekNF
no factor from 2^63 to 2^64