Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
80599763Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 275
P-1
B1 = 675000
B2 = 12487500
LL
StatusDateUserResidueShift
Verified2018-07-28planetmike2538874A757BCB6757860697
Bad2025-09-07Klaus Vicaro43D4324EB6AB7F6A72621498
Verified2025-09-14Jurzal2538874A757BCB6776310173
History
DateUserTypeResult
2025-09-14JurzalC-LL
2538874A757BCB67
2025-09-07Klaus VicaroC-LL
43D4324EB6AB7F6A
2018-07-28planetmikeC-LL
2538874A757BCB67
2017-02-17Abdullah BaigNF-PM1
B1=675000, B2=12487500
2016-10-27Sid & AndyNF
no factor from 2^74 to 2^75
2016-10-22Judge HaleNF
no factor from 2^73 to 2^74
2016-05-27Judge HaleNF
no factor from 2^72 to 2^73
2016-05-27Judge HaleNF
no factor from 2^71 to 2^72
2015-02-11monstNF
no factor from 2^70 to 2^71
2014-06-05timc995NF
no factor from 2^69 to 2^70
2013-06-06ManpowreNF
no factor from 2^68 to 2^69
2013-03-28wangyun183NF
no factor from 2^67 to 2^68
2011-01-27dslNF
no factor from 2^66 to 2^67
2011-01-25dslNF
no factor from 2^65 to 2^66
2010-12-10Architects CubedNF
no factor from 2^64 to 2^65