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
70343851
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 640000
B2 = 13280000
LL
StatusDateUserResidueShiftSoftware
Verified2015-08-24Kyle Z SchmidtB7402778C970D45961076757Windows 64-bit,Prime95,v28.5,build 2
Verified2024-08-06Ryan PropperB7402778C970D45923547217Linux 64-bit,Prime95,v30.7,build 9
History
DateUserTypeResult
2024-08-06Ryan PropperC-LLB7402778C970D459
2015-08-24Kyle Z SchmidtC-LLB7402778C970D459
2015-07-27ChuckNFno factor TF: 74-75
2015-01-06ANONYMOUSNF-PM1B1=640000, B2=13280000, E=12
2014-10-22NickOfTimeNFno factor TF: 73-74
2014-10-19RichD0NFno factor TF: 72-73
2014-09-18LaurVNFno factor TF: 71-72
2010-01-04ahmeraliNFno factor TF: 1-71
2009-11-26ahmeraliNFno factor TF: 1-71
2008-11-27Wojciech FlorekNFno factor TF: 1-64
2007-08-14AmperioNFno factor TF: 1-63