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
82207117Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 275
P-1
B1 = 655000
B2 = 12772500
LL
StatusDateUserResidueShift
Verified2018-09-17-Anonymous-4382748688A68FF724240425
Verified2025-09-15Fabrice Bellet4382748688A68FF731604246
History
DateUserTypeResult
2025-09-15Fabrice BelletC-LL
4382748688A68FF7
2018-09-17-Anonymous-C-LL
4382748688A68FF7
2016-12-12TheJudgerNF-PM1
B1=655000, B2=12772500, E=12
2016-12-04dh1NF
no factor from 2^75 to 2^76
2016-12-03Sid & AndyNF
no factor from 2^74 to 2^75
2016-12-03Sid & AndyNF
no factor from 2^73 to 2^74
2016-11-24RichD0NF
no factor from 2^72 to 2^73
2016-10-12tmorrowNF
no factor from 2^71 to 2^72
2013-12-09ANONYMOUSNF
no factor from 2^70 to 2^71
2013-10-31Juergen KampmeierNF
no factor from 2^69 to 2^70
2013-10-31Juergen KampmeierNF
no factor from 2^68 to 2^69
2013-10-31Juergen KampmeierNF
no factor from 2^67 to 2^68
2013-10-31Juergen KampmeierNF
no factor from 2^66 to 2^67
2012-09-11Carsten KossendeyNF
no factor from 2^65 to 2^66
2010-12-08Architects CubedNF
no factor from 2^64 to 2^65