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
1084297Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
6505783722.6old
32528911825.02008-07-16 09:31:07
ECM
DigitsB1Curves
2550000280 / 280
30250000104 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01KrieselE98CDA58DB9FF744013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver KruseC4510D5C180B95212013
Verified2017-10-18kkmrkkblmbrbkC4510D5C180B9521211766413
History
DateUserTypeResult
2025-09-01phduvalCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
E98CDA58DB9FF744
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-10-04timc995NF-PM1
B1=2000000, B2=63130867800
2017-10-18kkmrkkblmbrbkC-PRP
M1084297/6505783/32528911 : C4510D5C180B9521
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M1084297/6505783/32528911 : C4510D5C180B9521
PRP: Verified
PRP without proof (not generated)
2008-07-16J FeitsmaF
Factor: 32528911