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
20011087Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 269
P-1
B1 = 1265000
B2 = 505552320
LL
StatusDateUserResidueShift
Verified2004-03-16Team RomaniaCAD927C1293368273562866
Verified2008-09-16David StrubeCAD927C12933682712443152
History
DateUserTypeResult
2024-06-28storm5510NF-PM1
B1=1265000, B2=505552320
2021-05-25-Anonymous-NF
no factor from 2^73 to 2^74
2021-05-22-Anonymous-NF
no factor from 2^72 to 2^73
2021-05-22-Anonymous-NF
no factor from 2^71 to 2^72
2019-09-27-Anonymous-NF
no factor from 2^70 to 2^71
2017-03-15ramgeisNF
no factor from 2^69 to 2^70
2016-02-09mikrNF
no factor from 2^68 to 2^69
2016-02-07YxinityNF
no factor from 2^67 to 2^68
2015-01-31NRNF
no factor from 2^66 to 2^67