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

PrimeNet Exponent Status

Exponent Range:





MnDetails
124363
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
352196017928.4old
5832920783176860387714237612788.92018-12-08 11:52:19
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000358 / 1566
Estimated T-Level: 31.1 ⓘ
TF below 2^98 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-22Oliver KruseEE945CA93510E2E51013
Factored
No proof (small exponent)
2017-10-13kkmrkkblmbrbkEE945CA93510E2E512123213
Verified
No proof (small exponent)
2018-12-08ATHA8F329C63704315527138953
Verified
No proof (small exponent)
2018-12-09storm5510A8F329C63704315526755253
History
DateUserTypeResult
2026-01-15ViliamFNF-PM1B1=100000000, B2=2008794267480
2018-12-09storm5510C-PRPM124363/352196017/583292078317686038771423761 : A8F329C637043155
2018-12-08ATHC-PRPM124363/352196017/583292078317686038771423761 : A8F329C637043155
2018-12-08Niels_Mache_NextcloudF-ECMFactor: 583292078317686038771423761
2017-10-13kkmrkkblmbrbkC-PRPM124363/352196017 : EE945CA93510E2E5
2017-09-22Oliver KruseC-PRPM124363/352196017 : EE945CA93510E2E5
2017-09-21Oliver KruseC-PRPM124363/352196017 : EE945CA93510E2E5
2017-03-11kkmrkkblmbrbkNF-PM1B1=100000000, B2=2000000000, E=12