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:





MnDetails
49761451
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 273
P-1
B1 = 780000
B2 = 780000
LL
StatusDateUserResidueShiftSoftware
Bad2010-11-14unconnected912897F62A6F3A4C21201463Windows,Prime95,v25.11,build 2
Verified2016-01-19MadPoo 🙂D0A9A11A12EDFC2224529857Windows 64-bit,Prime95,v26,(aka We4)
Verified2016-09-11endless_mikeD0A9A11A12EDFC2234313204Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2024-08-15tbusbyNFno factor TF: 69-70
2017-12-08Oliver KruseNFno factor TF: 72-74
2016-09-11endless_mikeC-LLD0A9A11A12EDFC22
2016-01-19MadPoo 🙂C-LLD0A9A11A12EDFC22
2015-12-24AirSquirrelsNFno factor TF: 71-72
2015-12-24AirSquirrelsNFno factor TF: 70-71
2015-07-12Architects CubedNFno factor TF: 69-70
2010-11-14unconnectedC-LL912897F62A6F3A4C
2010-02-12JamesNF-PM1B1=780000
2008-10-04RMAC9.5NFno factor TF: 1-69