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
15724783Factored
FactorDigitsBitsDate
2709380401826411752632167.92016-12-28 14:41:35
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-08-31Greg JamesF2392218E121187E11191150
Verified (Factored)2006-05-29Marc Getty / Phil FizurF2392218E121187E5668869
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-10-21Funky Waddle33F32257BC0F05D411003263653
History
DateUserTypeResult
2023-10-21curtiscCERT
PRP Certification
Proof certified good
2023-10-21Funky WaddleC-PRP
M15724783/270938040182641175263 : 33F32257BC0F05D4
PRP proof power = 8
PRP: Verified
Proof certified good
2023-08-22nordiNF-PM1
B1=480000, B2=264402600
2023-08-11nordiNF-PM1
B1=480000
2016-12-28ATHF-ECM
Factor: 270938040182641175263 / (ECM curve 1, B1=50000, B2=5000000)
2016-03-16Mark RoseNF
no factor from 2^65 to 2^66
2014-07-10NesowaNF
no factor from 2^66 to 2^67