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
29927587
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 271
P-1
B1 = 330000
B2 = 6682500
LL
StatusDateUserResidueShiftSoftware
Verified2006-01-15Stefano Marchesini05EF0518E16CCED31964727Windows,Prime95,v24 final,(aka Wc1)
Verified2013-11-22Dubslow05EF0518E16CCED38768553Linux 64-bit,Prime95,v27.9,build 1
History
DateUserTypeResult
2022-10-16Architects CubedNFno factor TF: 72-73
2020-07-21Sid & AndyNFno factor TF: 71-72
2018-08-18monstNFno factor TF: 70-71
2013-11-22DubslowC-LL05EF0518E16CCED3
2011-08-24GregNFno factor TF: 69-70
2011-08-24GregNFno factor TF: 68-69
2006-01-15-anonymous-C-LL05EF0518E16CCED3
2005-11-27-anonymous-NF-PM1B1=330000, B2=6682500
2005-06-05-anonymous-NFno factor TF: 1-68
2001-09-16Net_ForceNFno factor TF: 1-56
2000-05-10Alex KruppaNFno factor TF: 1-53