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
45001219Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 272
P-1
B1 = 425000
B2 = 3187500
LL
StatusDateUserResidueShift
Verified2009-07-11ahmerali130F9BE6B183F3AD12615218
Verified2018-08-03S485122130F9BE6B183F3AD6218079
History
DateUserTypeResult
2021-03-13mikrNF
no factor from 2^73 to 2^75
2018-08-03S485122C-LL
130F9BE6B183F3AD
2017-11-02One ManNF
no factor from 2^72 to 2^73
2015-10-23-Anonymous-NF
no factor from 2^71 to 2^72
2015-10-23-Anonymous-NF
no factor from 2^70 to 2^71
2009-07-11ahmeraliC-LL
130F9BE6B183F3AD
2009-05-17ahmeraliNF-PM1
B1=425000, B2=3187500
2009-05-14ahmeraliNF
no factor to 2^70