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
49232983Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 273
P-1
B1 = 785000
B2 = 785000
LL
StatusDateUserResidueShift
Verified2013-09-19ATH27ACF5392D052ABA39522640
Verified2019-07-13Andrew G27ACF5392D052ABA46414005
History
DateUserTypeResult
2019-07-13Andrew GC-LL
27ACF5392D052ABA
2017-09-19-Anonymous-NF
no factor from 2^72 to 2^73
2013-09-19ATHC-LL
27ACF5392D052ABA
2012-09-22Jerry HallettNF
no factor from 2^69 to 2^72
2011-11-09-Anonymous-NF-PM1
B1=785000
2008-06-03-Anonymous-NF
no factor to 2^64