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
371387Factored
FactorDigitsBitsDate
132626430112173292398958584972993.42019-04-08 00:39:30
ECM
DigitsB1Curves
2550000280 / 280
30250000260 / 640
Estimated T-Level: 27.0 ⓘ
TF below 2^85 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski1CEE0
Verified (Factored)Jim Kraemer6A2AE286C2569CEE0
Verified (Factored)Eivind Triel6A2AE286C2569CEE76927
Verified (Factored)2002-01-02Dennis Pope6A2AE286C2569CEE320075
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-04-08ATHE8F5606FAB4B4BA418460153
Verified2019-04-08kkmrkkblmbrbkE8F5606FAB4B4BA4114765453
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-04-08kkmrkkblmbrbkC-PRP
M371387/13262643011217329239895858497 : E8F5606FAB4B4BA4
PRP: Verified
PRP without proof (small exponent)
2019-04-08ATHC-PRP
M371387/13262643011217329239895858497 : E8F5606FAB4B4BA4
PRP: Verified
PRP without proof (small exponent)
2019-04-08alexF-ECM
Factor: 13262643011217329239895858497 / (ECM curve 10, B1=250000, B2=25000000, Sigma=5135260173919439)
2018-02-22Gordon SpenceNF
no factor from 2^64 to 2^65
2018-02-09BloodERazorNF
no factor from 2^64 to 2^65
2016-12-08mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2015-11-21Gordon SpenceNF
no factor from 2^63 to 2^64
2015-11-21Gordon SpenceNF
no factor from 2^62 to 2^63
2015-08-13NRNF
no factor from 2^61 to 2^62
2013-01-13Sid & AndyNF
no factor from 2^60 to 2^61
2012-08-04alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2012-05-29JossNF-PM1
B1=3600094
2012-03-05JossNF-PM1
B1=1500039
2011-08-20JossNF-PM1
B1=1200031
2009-01-24Sturle SundeNF
no factor from 2^59 to 2^60
2009-01-06Sturle SundeNF
no factor from 2^58 to 2^59