Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
13151Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
11783297823.5old
5034854506295808138604735127213098.72009-08-09 23:07:53
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001385 / 9201
Estimated T-Level: 40.8
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse764D988540B1DC4A2013
Verified2017-10-12kkmrkkblmbrbk764D988540B1DC4A21035913
Verified2020-04-17Oliver Kruse7C9693F63D43DE2A2835553
Verified2024-07-01kkmrkkblmbrbk7C9693F63D43DE2A2827453
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13151/11783297/503485450629580813860473512721 : 7C9693F63D43DE2A
PRP: Verified
PRP without proof (small exponent)
2023-10-10-Anonymous-NF-PM1
B1=100000000000, B2=122154521813133810
2023-05-17JacobZNF-PM1
B1=8400000000, B2=34523926202766000
2022-02-05JossNF-PM1
B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRP
M13151/11783297/503485450629580813860473512721 : 7C9693F63D43DE2A
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M13151/11783297/503485450629580813860473512721 : 764D988540B1DC4A
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13151/11783297/503485450629580813860473512721 : 764D988540B1DC4A
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13151/11783297/503485450629580813860473512721 : 764D988540B1DC4A
PRP without proof (not generated)
2009-08-09Rob_DeeF-ECM
Factor: 503485450629580813860473512721