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
72362273Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 980000
B2 = 21070000
LL
StatusDateUserResidueShift
Bad2015-12-08-Anonymous-2262515A4F4011B156774014
Verified2024-11-20lozcsCFFDED14F33B1B1F11863730
Verified2024-11-23garoCFFDED14F33B1B1F12911137
History
DateUserTypeResult
2024-11-23garoC-LL
CFFDED14F33B1B1F
2024-11-20lozcsC-LL
CFFDED14F33B1B1F
2015-12-08-Anonymous-C-LL
2262515A4F4011B1
2015-02-24Jerry HallettNF-PM1
B1=980000, B2=21070000, E=12
2015-02-18apocalypseNF
no factor from 2^74 to 2^75
2015-02-18apocalypseNF
no factor from 2^73 to 2^74
2015-02-18apocalypseNF
no factor from 2^72 to 2^73
2015-02-18apocalypseNF
no factor from 2^71 to 2^72
2012-11-20SMoffatNF
no factor from 2^70 to 2^71
2010-05-26Tom DuellNF
no factor to 2^70
2010-05-21RMAC9.5NF
no factor from 2^66 to 2^67
2010-05-18oodairaNF
no factor from 2^65 to 2^66
2010-05-16cdokolasNF
no factor from 2^64 to 2^65
2008-09-19Wojciech FlorekNF
no factor to 2^64