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
49807099Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2010-07-21Jacques X. Charles5E0D4A1D44387CC337939058
Verified2019-02-12_p95holder_5E0D4A1D44387CC332106259
History
DateUserTypeResult
2019-10-21Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=12
2019-07-10-Anonymous-NF
no factor from 2^73 to 2^74
2019-02-12_p95holder_C-LL
5E0D4A1D44387CC3
2018-01-26monstNF
no factor from 2^72 to 2^73
2015-12-05-Anonymous-NF
no factor from 2^71 to 2^72
2015-10-02GregNF
no factor from 2^70 to 2^71
2015-06-10el groccoNF
no factor from 2^69 to 2^70
2010-07-21Jacques X. CharlesC-LL
5E0D4A1D44387CC3
2010-02-12JamesNF-PM1
B1=780000