Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
562949Factored
FactorDigitsBitsDate
13150573293425579092284875032890.12019-04-10 23:30:45
ECM
DigitsB1Curves
2550000280 / 280
30250000199 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski384A0
Verified (Factored)Claude Barbe344BE6F36F01B84A0
Verified (Factored)2002-05-25Dennis Pope344BE6F36F01B84A244911
Verified (Factored)2015-04-11MadPoo344BE6F36F01B84A101564
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-04-11artorollo8ADCDAB02A488B41114698353
Verified2019-04-12marssystems8ADCDAB02A488B41140425453
P-1 factors
DateFactorB1B2
2019-04-10131505732934255790922848750310000000400000000
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-08-27ViliamFNF-PM1
B1=15000000, B2=1815000000
2019-04-12marssystemsC-PRP
M562949/1315057329342557909228487503 : 8ADCDAB02A488B41
PRP: Verified
PRP without proof (small exponent)
2019-04-11artorolloC-PRP
M562949/1315057329342557909228487503 : 8ADCDAB02A488B41
PRP: Verified
PRP without proof (small exponent)
2019-04-10alexF-PM1
Factor: 1315057329342557909228487503 / (P-1, B1=10000000, B2=400000000, E=12)
2018-06-04chuenkitNF
no factor from 2^65 to 2^66
2017-11-19BloodERazorNF
no factor from 2^64 to 2^65
2016-02-23Mark RoseNF
no factor from 2^60 to 2^61
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-11-09Sid & AndyNF-PM1
B1=5629490, B2=168884700, E=12
2015-10-21Bruno VictalNF-PM1
B1=1600000, B2=66000000, E=12
2015-09-13Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-13Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-12NRNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
344BE6F36F01B84A
2013-10-15David CampeauNF-PM1
B1=1355000, B2=36585000, E=12
2012-07-14JossNF-PM1
B1=1125898
2012-03-05JossNF-PM1
B1=874745
2011-08-20JossNF-PM1
B1=699796
2011-06-27JossNF-PM1
B1=419877