Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
50133737Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 273
P-1
B1 = 1000000
B2 = 22000000
LL
StatusDateUserResidueShift
Verified2010-11-09forrest-lumpkinF60C8CA1C1A9B60B8722156
Verified2020-02-16QuevvyF60C8CA1C1A9B60B30639252
History
DateUserTypeResult
2020-03-31riccardo ubertiNF-PM1
B1=1000000, B2=22000000, E=12
2020-02-16QuevvyC-LL
F60C8CA1C1A9B60B
2018-12-09Mark RoseNF
no factor from 2^73 to 2^74
2015-12-27Judge HaleNF
no factor from 2^72 to 2^73
2015-12-21AirSquirrelsNF
no factor from 2^71 to 2^72
2015-12-21AirSquirrelsNF
no factor from 2^70 to 2^71
2010-11-09forrest-lumpkinC-LL
F60C8CA1C1A9B60B
2010-09-20forrest-lumpkinNF-PM1
B1=720000