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
49907981Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 785000
B2 = 785000
LL
StatusDateUserResidueShift
Verified2011-06-24Gnorfe11D1A60E31591E8024871472
Verified2019-10-09Sergey Nosov11D1A60E31591E8020075450
History
DateUserTypeResult
2024-05-04Jarod McClintockNF
no factor from 2^73 to 2^74
2019-10-09Sergey NosovC-LL
11D1A60E31591E80
2018-01-01monstNF
no factor from 2^72 to 2^73
2015-12-06-Anonymous-NF
no factor from 2^71 to 2^72
2015-09-25Mark RoseNF
no factor from 2^70 to 2^71
2015-06-05LaurVNF
no factor from 2^69 to 2^70
2011-06-24GnorfeC-LL
11D1A60E31591E80
2010-06-21ANONYMOUSNF-PM1
B1=785000