Marin Mersenne 2^P-1
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MnStatusDetails
13309Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
12107213829558644574897562244656733106.62008-10-25 20:59:11
3327748221315102886394221809461268735114.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001382 / 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 KruseB6C52AB6005A25C42013
Verified2017-10-02kkmrkkblmbrbkB6C52AB6005A25C42013
Verified2017-12-07ATHB6C52AB6005A25C42826813
Verified2020-04-17Oliver Kruse04CF9776ED90023F2533653
Verified2024-07-01kkmrkkblmbrbk04CF9776ED90023F21176953
P-1 factors
DateFactorB1B2
2023-12-19121072138295586445748975622446567100000000000122154521813133808
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M13309/121072138295586445748975622446567/33277482213151028863942218094612687 : 04CF9776ED90023F
PRP: Verified
PRP without proof (small exponent)
2023-12-19-Anonymous-F-PM1
Factor: 121072138295586445748975622446567 / (P-1, B1=100000000000, B2=122154521813133810)
2023-05-18JacobZNF-PM1
B1=8300000000, B2=34023579430740900
2022-02-05JossNF-PM1
B1=1000000, B2=3910366209750
2020-04-17Oliver KruseC-PRP
M13309/121072138295586445748975622446567/33277482213151028863942218094612687 : 04CF9776ED90023F
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M13309/121072138295586445748975622446567/33277482213151028863942218094612687 : B6C52AB6005A25C4
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M13309/121072138295586445748975622446567/33277482213151028863942218094612687 : B6C52AB6005A25C4
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M13309/33277482213151028863942218094612687/121072138295586445748975622446567 : B6C52AB6005A25C4
PRP without proof (not generated)
2008-10-25Will EdgingtonF-ECM
Factor: 121072138295586445748975622446567