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
49619113Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 273
P-1
B1 = 1500000
B2 = 45000000
LL
StatusDateUserResidueShift
Verified2011-06-01Geoff Wing4B7345302E6CB80E24400362
Verified2019-08-20Sergey Nosov4B7345302E6CB80E39505191
History
DateUserTypeResult
2024-08-16tbusbyNF
no factor from 2^69 to 2^70
2021-11-09Anton RepkoNF
no factor from 2^75 to 2^76
2021-08-22Sid & AndyNF
no factor from 2^74 to 2^75
2021-05-17Sid & AndyNF-PM1
B1=1500000, B2=45000000
2019-08-20Sergey NosovC-LL
4B7345302E6CB80E
2018-12-23-Anonymous-NF
no factor from 2^73 to 2^74
2018-01-22monstNF
no factor from 2^72 to 2^73
2015-11-22dragonbud20NF
no factor from 2^71 to 2^72
2015-10-03LaurVNF
no factor from 2^70 to 2^71
2015-07-19Architects CubedNF
no factor from 2^69 to 2^70
2011-06-01Geoff WingC-LL
4B7345302E6CB80E
2011-04-25Geoff WingNF-PM1
B1=575000, B2=14231250