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
67773569
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 610000
B2 = 11437500
LL
StatusDateUserResidueShiftSoftware
Verified2015-05-12Alex Vong0A85E13CEFD764170Mlucas E14.1
Verified2015-06-12MadPoo 🙂0A85E13CEFD7641725846021Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2015-06-12MadPoo 🙂C-LL0A85E13CEFD76417
2015-05-12Alex VongC-LL0A85E13CEFD76417
2015-05-11Alex VongNFno factor TF: 74-75
2013-12-21Team_InspectorNF-PM1B1=610000, B2=11437500
2013-11-15Jerry HallettNFno factor TF: 73-74
2013-10-10Jerry HallettNFno factor TF: 72-73
2013-04-27SRS TechnologyNFno factor TF: 71-72
2013-04-27SRS TechnologyNFno factor TF: 70-71
2012-03-01NBNFno factor TF: 69-70
2010-06-09KivNFno factor TF: 68-69
2010-04-06eon_blue_apocalypseNFno factor TF: 67-68
2010-03-29AndrakulaNFno factor TF: 66-67
2010-03-11Stephen J. HerschkornNFno factor TF: 65-66
2010-03-05-anonymous-NFno factor TF: 64-65
2008-12-26Wojciech FlorekNFno factor TF: 63-64