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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
559213Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3838902665860297664817082972788.32015-11-10 23:11:03
ECM
DigitsB1Curves
2550000280 / 280
30250000210 / 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 Slowinski20B90
Verified (Factored)David Linton94B4A2C66FE820B90
Verified (Factored)Jud McCranie94B4A2C66FE820B90
Verified (Factored)2015-04-11MadPoo94B4A2C66FE820B971143
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse066507B040FA9FD21013
Verified2017-09-28Oliver Kruse066507B040FA9FD21013
Verified2017-11-09kkmrkkblmbrbk066507B040FA9FD2150904413
Verified2020-04-19Oliver KruseDAF126DA0E031F9C152601653
Verified2025-01-08kkmrkkblmbrbkDAF126DA0E031F9C129636153
History
DateUserTypeResult
2025-01-08jingfiredCERT
PRP Certification
Proof certified good
2025-01-08kkmrkkblmbrbkC-PRP
M559213/383890266586029766481708297 : DAF126DA0E031F9C
PRP proof power = 6
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^60 to 2^61
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-19Oliver KruseC-PRP
M559213/383890266586029766481708297 : DAF126DA0E031F9C
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M559213/383890266586029766481708297 : 066507B040FA9FD2
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M559213/383890266586029766481708297 : 066507B040FA9FD2
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M559213/383890266586029766481708297 : 066507B040FA9FD2
PRP: Verified
PRP without proof (not generated)
2015-11-10mikrF-ECM
Factor: 383890266586029766481708297 / (ECM curve 42, B1=50000, B2=5000000)
2015-09-13Gordon SpenceNF
no factor from 2^63 to 2^64
2015-09-13Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-10NRNF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
94B4A2C66FE820B9
2013-11-05David CampeauNF-PM1
B1=3670000, B2=139460000, E=12
2012-10-12JossNF-PM1
B1=3592955
2012-07-14JossNF-PM1
B1=1118426
2012-03-05JossNF-PM1
B1=882330
2011-08-20JossNF-PM1
B1=705864
2011-06-25JossNF-PM1
B1=362144