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
50368789
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 273
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShiftSoftware
Verified2010-10-15Reed_YoungB11C8202F5E012F146439966Linux 64-bit,Prime95,v25.9,build 4
Verified2019-12-19FJCrodericckB11C8202F5E012F111310083Windows 64-bit,Prime95,v29.4,build 8
History
DateUserTypeResult
2019-12-19FJCrodericckC-LLB11C8202F5E012F1
2018-11-27Mark RoseNFno factor TF: 73-74
2018-05-26Sid & AndyNF-PM1B1=1000000, B2=20000000, E=12
2016-01-06Judge HaleNFno factor TF: 72-73
2015-12-28AirSquirrelsNFno factor TF: 71-72
2015-12-28AirSquirrelsNFno factor TF: 70-71
2015-01-21monstNFno factor TF: 69-70
2010-10-15Reed_YoungC-LLB11C8202F5E012F1
2010-07-11Reed_YoungNF-PM1B1=815000
2008-11-16mgsoftNFno factor TF: 1-69
2003-11-08-anonymous-NFno factor TF: 1-60
2003-08-25-anonymous-NFno factor TF: 1-59
2001-12-22-anonymous-NFno factor TF: 1-58
2001-04-21-anonymous-NFno factor TF: 1-57
2000-04-05-anonymous-NFno factor TF: 1-56
2000-02-09-anonymous-NFno factor TF: 1-54
2000-01-04-anonymous-NFno factor TF: 1-53
1999-10-07-anonymous-NFno factor TF: 1-53