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
44337253
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 535000
B2 = 15113750
LL
StatusDateUserResidueShiftSoftware
Bad2009-10-02curtiscAFA74697C21AA3F540363138Windows Service,Prime95,v25.8,build 1
Verified2009-12-19Richard_OtterF076AF223AB008B8535724Windows,Prime95,v25.9,build 4
Verified2016-09-18Mark RoseF076AF223AB008B85903443Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2022-04-10TheJudgerNFno factor TF: 73-74
2022-04-10TheJudgerNFno factor TF: 72-73
2016-09-18Mark RoseC-LLF076AF223AB008B8
2015-08-09GregNFno factor TF: 70-72
2015-07-25Denial140NFno factor TF: 69-70
2014-03-08Torben K.NFno factor TF: 68-69
2009-12-19Richard_OtterC-LLF076AF223AB008B8
2009-10-02curtiscC-LLAFA74697C21AA3F5
2008-10-14-anonymous-NF-PM1B1=535000, B2=15113750
2008-03-22-anonymous-NFno factor TF: 1-68
2007-12-31-anonymous-NFno factor TF: 1-68
2005-03-20dave_0273NFno factor TF: 1-62