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
6841Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
41047515.3old
64962137826.0old
77973719826.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001299 / 9201
Estimated T-Level: 40.7
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 Kruse6E64F5236D33F7413013
Verified2017-10-12kkmrkkblmbrbk6E64F5236D33F7413600613
Verified2020-04-17Oliver KruseAC818678D094DD893181153
Verified2024-02-03Wentao HuangAC818678D094DD893627653
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6841/41047/64962137/77973719 : AC818678D094DD89
PRP: Verified
PRP without proof (small exponent)
2022-11-30Oliver KruseNF-PM1
B1=100000000000, B2=262147191341735700
2022-11-29Oliver KruseNF-PM1
B1=100000000000
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M6841/41047/64962137/77973719 : AC818678D094DD89
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6841/41047/64962137/77973719 : 6E64F5236D33F741
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6841/41047/64962137/77973719 : 6E64F5236D33F741
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6841/41047/64962137/77973719 : 6E64F5236D33F741
PRP without proof (not generated)