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
9949Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
8098487722.9old
296043578519601500513820627135432131020611715946151.12024-08-10 19:05:29
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003746 / 16550
Estimated T-Level: 46.1
TF below 2^148 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse679233B330B00D821013
Verified (Factored)2017-10-12kkmrkkblmbrbk679233B330B00D821271213
Verified (Factored)2020-04-17Oliver Kruse1678883B905A18481890953
Verified (Factored)2024-07-01kkmrkkblmbrbk1678883B905A18481872653
Verified2024-08-10nordi1678883B905A18482728853
History
DateUserTypeResult
2024-08-10nordiC-PRP
M9949/8098487/2960435785196015005138206271354321310206117159 : 1678883B905A1848
PRP: Verified
PRP without proof (small exponent)
2024-08-10nordiF-ECM
Factor: 2960435785196015005138206271354321310206117159 / (ECM curve 1160, B1=44000000, B2=1117403522235, Edwards Sigma=666175522102182)
2024-07-01kkmrkkblmbrbkC-PRP
M9949/8098487 : 1678883B905A1848
PRP: Verified
PRP without proof (small exponent)
2023-06-11JacobZNF-PM1
B1=58000000000, B2=241250667952694400
2022-11-24Kevin_9611NF-PM1
B1=1000000000, B2=100294988083290
2022-02-05JossNF-PM1
B1=1000000, B2=6010952007060
2020-04-17Oliver KruseC-PRP
M9949/8098487 : 1678883B905A1848
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M9949/8098487 : 679233B330B00D82
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M9949/8098487 : 679233B330B00D82
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M9949/8098487 : 679233B330B00D82
PRP without proof (not generated)