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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
30215993Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 271
P-1
B1 = 275000
B2 = 1306250
LL
StatusDateUserResidueShift
Verified2006-04-14Ahmer AliCF1A147B35B4165727919042
Verified2013-01-18arnaudCF1A147B35B4165720721489
History
DateUserTypeResult
2020-11-13-Anonymous-NF
no factor from 2^74 to 2^75
2020-04-12-Anonymous-NF
no factor from 2^73 to 2^74
2019-12-14-Anonymous-NF
no factor from 2^72 to 2^73
2019-12-14-Anonymous-NF
no factor from 2^71 to 2^72
2017-08-04ramgeisNF
no factor from 2^70 to 2^71
2013-01-18arnaudC-LL
CF1A147B35B41657
2012-03-30bcp19NF
no factor from 2^69 to 2^70
2012-03-30bcp19NF
no factor from 2^68 to 2^69