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
41425513
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 675000
B2 = 675000
LL
StatusDateUserResidueShiftSoftware
Bad2009-09-01curtisc1D63582CF75CD5EE32454371Windows Service,Prime95,v25.8,build 1
Verified2016-08-03rudimeier4DB51BD2FB256F1815514324Linux 64-bit,Prime95,v28.9,build 2
Verified2016-08-10ATH4DB51BD2FB256F1820714756CUDALucas v2.05.1
History
DateUserTypeResult
2022-05-15Sid & AndyNFno factor TF: 72-73
2016-08-10ATHC-LL4DB51BD2FB256F18
2016-08-03rudimeierC-LL4DB51BD2FB256F18
2015-08-21AirSquirrelsNFno factor TF: 71-72
2015-01-15srow7NFno factor TF: 70-71
2015-01-14Mark RoseNFno factor TF: 69-70
2014-02-12LaurVNFno factor TF: 68-69
2009-09-01curtiscC-LL1D63582CF75CD5EE
2009-07-16curtiscNF-PM1B1=675000
2007-03-20Sturle SundeNFno factor TF: 1-68