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
28814827Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 270
P-1
B1 = 260000
B2 = 1235000
LL
StatusDateUserResidueShift
Verified2007-05-12C. Cooper / S. BooneBED5457B4341B8EC21973463
Verified2012-04-07-Anonymous-BED5457B4341B8EC23559417
History
DateUserTypeResult
2024-05-13James HeinrichNF
no factor from 2^68 to 2^69
2021-05-20Sid & AndyNF
no factor from 2^72 to 2^73
2021-05-20Sid & AndyNF
no factor from 2^71 to 2^72
2021-01-30mikrNF
no factor from 2^70 to 2^71
2017-04-19ramgeisNF
no factor from 2^69 to 2^70
2012-04-07-Anonymous-C-LL
BED5457B4341B8EC
2012-01-14Carsten KossendeyNF
no factor from 2^68 to 2^69