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
3435379Factored
FactorDigitsBitsDate
45802209824329991652.0old
7803700566781545305897112479.42022-04-10 23:56:37
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-11-06Oliver Kruse06C07C5291AA27F81221189853
Verified (Factored)2017-12-17noknoFBE70B3655ADBF6F1013
Verified (Factored)2017-12-17kkmrkkblmbrbk06C07C5291AA27F81317862653
Verified (Factored)2017-12-18kkmrkkblmbrbkFBE70B3655ADBF6F151784913
Verified2022-04-17XZT06C07C5291AA27F8230201353
P-1 factors
DateFactorB1B2
2022-01-2145802209824329999000090000
2022-04-107803700566781545305897111000000126668850
History
DateUserTypeResult
2022-04-17Chad Steenerson CERT
PRP Certification
Proof certified good
2022-04-17XZTC-PRP
M3435379/4580220982432999/780370056678154530589711 : 06C07C5291AA27F8
PRP proof power = 7
PRP: Verified
Proof certified good
2022-04-10JossF-PM1
Factor: 780370056678154530589711 / (P-1, B1=1000000, B2=126668850)
2022-01-21JossF-PM1
Factor: 4580220982432999 / (P-1, B1=90000, B2=90000)
2021-06-10JossNF
no factor from 2^67 to 2^68
2017-12-18kkmrkkblmbrbkC-PRP
M3435379/4580220982432999 : FBE70B3655ADBF6F
PRP: Verified (Factored)
PRP without proof (not generated)
2017-12-17kkmrkkblmbrbkC-PRP
M3435379/4580220982432999 : 06C07C5291AA27F8
PRP: Verified (Factored)
PRP without proof (not generated)
2017-12-17noknoC-PRP
M3435379/4580220982432999 : FBE70B3655ADBF6F
PRP: Verified (Factored)
PRP without proof (not generated)
2017-11-06Oliver KruseC-PRP
M3435379/4580220982432999 : 06C07C5291AA27F8
PRP: Verified (Factored)
PRP without proof (not generated)