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

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Exponent Range:










MnStatusDetails
7607Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
38421048136510404258613022392891.6old
103494877151958628543418151832993.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000002050 / 9201
Estimated T-Level: 41.1
TF below 2^132 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse68A1969A131E94292013
Verified2017-10-02kkmrkkblmbrbk68A1969A131E94292013
Verified2017-12-07ATH68A1969A131E94292301513
Verified2020-04-17Oliver KruseD1BA1242A1F194A52119053
Verified2024-02-03Wentao HuangD1BA1242A1F194A52230753
History
DateUserTypeResult
2024-11-07masserNF-PM1
B1=50000000000, B2=49109844535752000
2024-02-03Wentao HuangC-PRP
M7607/3842104813651040425861302239/10349487715195862854341815183 : D1BA1242A1F194A5
PRP: Verified
PRP without proof (small exponent)
2021-07-07ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M7607/3842104813651040425861302239/10349487715195862854341815183 : D1BA1242A1F194A5
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M7607/3842104813651040425861302239/10349487715195862854341815183 : 68A1969A131E9429
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M7607/3842104813651040425861302239/10349487715195862854341815183 : 68A1969A131E9429
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M7607/known_factors : 68A1969A131E9429
PRP without proof (not generated)