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

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Exponent Range:










MnStatusDetails
6919567Factored
FactorDigitsBitsDate
10656133191030.0old
172778138813919428332063.92017-06-07 12:19:34
2002057243706541808312167.42022-08-03 11:18:52
ECM
DigitsB1Curves
2550000113 / 280
Estimated T-Level: 22.0
TF below 2^68 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2018-01-22Oliver KruseA9C8E18A9600F5062213409753
Verified (Factored)2019-01-25Chang Chia-TcheA9C8E18A9600F5062219928553
Verified2022-08-08riccardo ubertiA9C8E18A9600F5063635552053
History
DateUserTypeResult
2022-08-17riccardo ubertiNF-PP1
Start=6/5, B1=4600000, B2=96000000
2022-08-13riccardo ubertiNF-PP1
Start=2/7, B1=4000000, B2=80000000
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^65 to 2^66
2022-08-10LordJuliusNF
no factor from 2^64 to 2^65
2022-08-10riccardo ubertiNF-PM1
B1=4000000, B2=164511270
2022-08-09arnaudCERT
PRP Certification
Proof certified good
2022-08-08riccardo ubertiC-PRP
M6919567/1065613319/17277813881391942833/200205724370654180831 : A9C8E18A9600F506
PRP proof power = 8
PRP: Verified
Proof certified good
2022-08-04J.R. AllenNF
no factor from 2^64 to 2^65
2022-08-03TJAOIF
Factor: 200205724370654180831 / TF: 67-68
2019-01-25Chang Chia-TcheC-PRP
M6919567/1065613319/17277813881391942833 : A9C8E18A9600F506
PRP: Verified (Factored)
PRP without proof (not generated)
2018-01-22Oliver KruseC-PRP
M6919567/1065613319/17277813881391942833 : A9C8E18A9600F506
PRP: Verified (Factored)
PRP without proof (not generated)
2017-06-07TJAOIF
Factor: 17277813881391942833 / TF: 63-64