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
74870843Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 650000
B2 = 12675000
LL
StatusDateUserResidueShift
Verified2017-04-02ConductorF4656654FFD5FF7174789202
Verified2024-12-18MARK_DANA_ROCKMANF4656654FFD5FF7148349797
History
DateUserTypeResult
2024-12-18MARK_DANA_ROCKMANC-LL
F4656654FFD5FF71
2017-04-02ConductorC-LL
F4656654FFD5FF71
2016-06-27NesowaNF-PM1
B1=650000, B2=12675000, E=6
2016-04-03Mark RoseNF
no factor from 2^57 to 2^64
2015-12-06TheJudgerNF
no factor from 2^74 to 2^75
2015-12-06TheJudgerNF
no factor from 2^73 to 2^74
2015-12-06TheJudgerNF
no factor from 2^72 to 2^73
2015-08-29ChuckNF
no factor from 2^71 to 2^72
2013-07-05Le ComteNF
no factor from 2^70 to 2^71
2013-05-27SMoffatNF
no factor from 2^69 to 2^70
2010-07-28Helmut ZulusNF
no factor from 2^68 to 2^69
2010-07-22LinGangNF
no factor from 2^67 to 2^68
2010-07-16SAHS Science DeptNF
no factor from 2^66 to 2^67
2010-07-15eon_blue_apocalypseNF
no factor from 2^65 to 2^66
2010-07-13-Anonymous-NF
no factor from 2^64 to 2^65