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
2659Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
957455670479591446.4old
2920054847991119031858.0old
481356463805666090713955303387931101.9old
50168473212866127926173598897216933108.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
551100000007274 / 40830
Estimated T-Level: 50.9
TF below 2^164 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse3B47E888BA240FF04013
Verified2017-10-02kkmrkkblmbrbk3B47E888BA240FF04013
Verified2017-12-07ATH3B47E888BA240FF04111713
Verified2020-04-17Oliver Kruse60EB26F03307109A4264253
Verified2024-02-03Wentao Huang60EB26F03307109A4124953
History
DateUserTypeResult
2024-06-04masserNF-PM1
B1=100000000000, B2=6400112065256910
2024-02-03Wentao HuangC-PRP
M2659/95745567047959/292005484799111903/4813564638056660907139553033879/501684732128661279261735988972169 : 60EB26F03307109A
PRP: Verified
PRP without proof (small exponent)
2021-07-05ViliamFNF-PM1
B1=1000000000, B2=191000000000
2020-04-17Oliver KruseC-PRP
M2659/95745567047959/292005484799111903/4813564638056660907139553033879/501684732128661279261735988972169 : 60EB26F03307109A
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M2659/95745567047959/292005484799111903/4813564638056660907139553033879/501684732128661279261735988972169 : 3B47E888BA240FF0
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M2659/95745567047959/292005484799111903/4813564638056660907139553033879/501684732128661279261735988972169 : 3B47E888BA240FF0
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2659/known_factors : 3B47E888BA240FF0
PRP without proof (not generated)