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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MnStatusDetails
22818869Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 269
P-1
B1 = 350000
B2 = 7000000
LL
StatusDateUserResidueShift
Verified2004-11-22Daniel McGregor296788DE98F8BDBE22188921
Verified2010-01-01S04803296788DE98F8BDBE9317228
History
DateUserTypeResult
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
2018-01-03ThaNF-PM1
B1=350000, B2=7000000, E=12
2017-07-09ramgeisNF
no factor from 2^69 to 2^70
2017-07-09ramgeisNF
no factor from 2^68 to 2^69
2017-05-01ramgeisNF
no factor from 2^67 to 2^68
2010-01-01S04803C-LL
296788DE98F8BDBE