Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
22470913Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 269
P-1
B1 = 350000
B2 = 7000000
LL
StatusDateUserResidueShift
Verified2005-06-19C. Cooper / S. Boone75281A94E21EEF9C13596924
Verified2009-11-15RMAC9.575281A94E21EEF9C7046099
History
DateUserTypeResult
2021-10-22TheJudgerNF
no factor from 2^74 to 2^75
2021-09-16TheJudgerNF
no factor from 2^73 to 2^74
2021-09-06TheJudgerNF
no factor from 2^72 to 2^73
2021-09-06TheJudgerNF
no factor from 2^71 to 2^72
2021-09-06TheJudgerNF
no factor from 2^70 to 2^71
2017-12-21ThaNF-PM1
B1=350000, B2=7000000, E=12
2017-07-28ramgeisNF
no factor from 2^69 to 2^70
2017-07-28ramgeisNF
no factor from 2^68 to 2^69
2017-05-05ramgeisNF
no factor from 2^67 to 2^68
2009-11-15RMAC9.5C-LL
75281A94E21EEF9C