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
68773777Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 625000
B2 = 12656250
LL
StatusDateUserResidueShift
Verified2016-09-26tomokipapa490F6C141571D23C7973300
Verified2023-01-25demfloro490F6C141571D23C32821945
History
DateUserTypeResult
2023-01-25demfloroC-LL
490F6C141571D23C
2016-09-26tomokipapaC-LL
490F6C141571D23C
2016-03-27PDWNF
no factor from 2^74 to 2^75
2014-12-30NesowaNF-PM1
B1=625000, B2=12656250, E=6
2014-10-24Tim SorberaNF
no factor from 2^73 to 2^74
2014-10-20gcardonaNF
no factor from 2^72 to 2^73
2014-08-19RichD0NF
no factor from 2^71 to 2^72
2013-06-29Brian SchroederNF
no factor from 2^70 to 2^71
2012-03-11ptcrNF
no factor from 2^69 to 2^70
2010-04-24arnaudNF
no factor from 2^68 to 2^69
2010-04-18seekuaNF
no factor from 2^67 to 2^68
2010-04-15seekuaNF
no factor from 2^66 to 2^67
2010-04-12dmbeesonNF
no factor from 2^65 to 2^66
2010-01-22Sturle SundeNF
no factor from 2^64 to 2^65
2008-11-171997rj7NF
no factor to 2^64