Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
15100091Factored
FactorDigitsBitsDate
106780256734062053083516812683.12022-02-13 22:41:20
ECM
DigitsB1Curves
255000014 / 280
Estimated T-Level: 20.3
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-09-14Juergen Mueller797592D537F5360014264326
Verified (Factored)2005-11-01Stephen Wood797592D537F5360011526417
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2023-06-16PerigFEEB5E97DDF7251B11463562253
History
DateUserTypeResult
2023-11-05nordiNF-PM1
B1=480000, B2=449768550
2023-10-22nordiNF-PM1
B1=480000
2023-06-16Section 31CERT
PRP Certification
Proof certified good
2023-06-16PerigC-PRP
M15100091/10678025673406205308351681 : FEEB5E97DDF7251B
PRP proof power = 8
PRP: Verified
Proof certified good
2022-02-13ATHF-PP1
Start=2/7, B1=1000000, B2=29000000, Factor: 10678025673406205308351681
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-03SRBaseNF
no factor from 2^70 to 2^71
2021-06-27lycornNF
no factor from 2^69 to 2^70
2017-10-08ramgeisNF
no factor from 2^68 to 2^69
2016-11-04mikrNF
no factor from 2^67 to 2^68
2016-08-08ThaNF-PM1
B1=300000, B2=6000000, E=12
2014-05-14NesowaNF
no factor from 2^66 to 2^67
2014-05-14NesowaNF
no factor from 2^65 to 2^66