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
848269Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
19595013911030.9old
30741268571031.52008-07-16 09:27:37
9513710412667611549.82014-05-09 18:36:47
15498428227314791650.52014-05-28 11:38:54
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver KruseB58494E46247D6C54013
Verified2017-10-14Oliver KruseB58494E46247D6C5459783713
Verified2017-12-18ATHB58494E46247D6C542810213
Verified2020-04-22Oliver Kruse01081E63D1B684DF461607453
Verified2025-05-01kkmrkkblmbrbk01081E63D1B684DF433801753
History
DateUserTypeResult
2025-05-01numba.33CERT
PRP Certification
Proof certified good
2025-05-01kkmrkkblmbrbkC-PRP
M848269/1959501391/3074126857/951371041266761/1549842822731479 : 01081E63D1B684DF
PRP proof power = 6
PRP: Verified
Proof certified good
2024-09-29timc995NF-PM1
B1=1000000, B2=45147432330
2020-04-22Oliver KruseC-PRP
M848269/1959501391/3074126857/951371041266761/1549842822731479 : 01081E63D1B684DF
PRP: Verified
PRP without proof (small exponent)
2017-12-18ATHC-PRP
M848269/1959501391/3074126857/951371041266761/1549842822731479 : B58494E46247D6C5
PRP: Verified
PRP without proof (small exponent)
2017-10-14Oliver KruseC-PRP
M848269/1959501391/3074126857/951371041266761/1549842822731479 : B58494E46247D6C5
PRP: Verified
PRP without proof (small exponent)
2017-10-05Oliver KruseC-PRP
M848269/1959501391/3074126857/951371041266761/1549842822731479 : B58494E46247D6C5
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M848269/1959501391/3074126857/951371041266761/1549842822731479 : B58494E46247D6C5
PRP without proof (not generated)
2014-05-28TJAOIF
Factor: 1549842822731479
2014-05-09TJAOIF
Factor: 951371041266761
2008-07-16J FeitsmaF
Factor: 3074126857