Marin Mersenne 2^P-1
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MnStatusDetails
13174081Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
443932930817289794071939212685.22021-05-27 01:54:13
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)2001-10-13jimF7E79C53438B54C613009319
Verified (Factored)2004-11-22Ars Technica Team Prime RibF7E79C53438B54C64913017
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-06-16PoaoF19E3402682DD8341540551053
P-1 factors
DateFactorB1B2
2021-05-2744393293081728979407193921480000480000
History
DateUserTypeResult
2023-10-29nordiNF-PM1
B1=500000, B2=315199500
2023-10-22nordiNF-PM1
B1=500000
2022-06-16Graeme HolyoakeCERT
PRP Certification
Proof certified good
2022-06-16PoaoC-PRP
M13174081/44393293081728979407193921 : F19E3402682DD834
PRP proof power = 8
PRP: Verified
Proof certified good
2021-05-27Dylan DelgadoF-PM1
Factor: 44393293081728979407193921 / (P-1, B1=480000, B2=480000, e=12, n=720K CUDAPm1 v0.22)
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2017-12-22-Anonymous-NF
no factor from 2^67 to 2^68
2015-07-13NesowaNF
no factor from 2^66 to 2^67
2014-05-26NesowaNF
no factor from 2^65 to 2^66
2013-05-19-Anonymous-NF
no factor from 2^64 to 2^65