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
51479Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
52236185202387431652.22008-08-26 20:06:36
60799420432187111652.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000553 / 4588
Estimated T-Level: 35.6
TF below 2^113 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse3AD2ABF9224F91FF2013
Verified2017-10-13kkmrkkblmbrbk3AD2ABF9224F91FF22311613
Verified2020-04-17Oliver Kruse82811CA5B719FF4522270953
Verified2024-02-03Wentao Huang82811CA5B719FF452972453
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M51479/6079942043218711/5223618520238743 : 82811CA5B719FF45
PRP: Verified
PRP without proof (small exponent)
2023-04-11JacobZNF-PM1
B1=680000000, B2=844903806356610
2021-04-26ATHNF-PP1
Start=2/7, B1=10000000, B2=1000000000
2020-04-17Oliver KruseC-PRP
M51479/5223618520238743/6079942043218711 : 82811CA5B719FF45
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M51479/5223618520238743/6079942043218711 : 3AD2ABF9224F91FF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M51479/6079942043218711/5223618520238743 : 3AD2ABF9224F91FF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M51479/6079942043218711/5223618520238743 : 3AD2ABF9224F91FF
PRP without proof (not generated)
2016-09-19kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F
Factor: 5223618520238743