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
44713567
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShiftSoftware
Bad2009-09-30raymondf2A8EA9C207A5982B25653954Linux 64-bit,Prime95,v25.7,build 3
Verified2009-11-08curtiscF781F01ADC8DF04743645574Windows Service,Prime95,v25.8,build 1
Verified2016-09-17Mark RoseF781F01ADC8DF0471146783Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2024-06-20James HeinrichNFno factor TF: 69-70
2019-11-11Sid & AndyNFno factor TF: 73-74
2019-08-25Sid & AndyNF-PM1B1=1000000, B2=20000000, E=12
2018-08-04-anonymous-NFno factor TF: 72-73
2016-09-17Mark RoseC-LLF781F01ADC8DF047
2015-08-09GregNFno factor TF: 70-72
2015-07-30Carsten KossendeyNFno factor TF: 69-70
2014-06-29VictordeHollanderNFno factor TF: 68-69
2009-11-08curtiscC-LLF781F01ADC8DF047
2009-09-30raymondfC-LL2A8EA9C207A5982B
2009-07-17raymondfNF-PM1B1=755000
2007-11-17SorianoNFno factor TF: 1-68