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:





MnDetails
4297
Composite, with 6 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
893777619.8old
72166568091032.7old
386212211511135.2old
1591928194451560243162312135913097.0old
25173688172148194118671404862329012736117.6old
9643742985524046211448944155370448805988741136.12020-09-30 15:49:01
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000029222 / 40830
Estimated T-Level: 53.6 ⓘ
TF below 2^173 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse020BE1278154843A5013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk020BE1278154843A5013
Factored
No proof (small exponent)
2017-12-07ATH020BE1278154843A5218413
Factored
No proof (small exponent)
2020-04-17Oliver KruseCDD0E27347F609E95268053
Verified
No proof (small exponent)
2020-10-01mnd9CDD0E27347F609E9620553
Verified
No proof (small exponent)
2020-10-02LordJuliusCDD0E27347F609E96136053
History
DateUserTypeResult
2025-05-14masserNF-PP1Start=87/47, B1=2600000000, B2=2597400000000
2023-05-20-anonymous-NF-PM1B1=75000000000, B2=751710476301835050
2021-07-05ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-10-02LordJuliusC-PRPM4297/893777/7216656809/38621221151/159192819445156024316231213591/251736881721481941186714048623290127/96437429855240462114489441553704488059887 : CDD0E27347F609E9
2020-10-01mnd9C-PRPM4297/893777/7216656809/38621221151/159192819445156024316231213591/251736881721481941186714048623290127/96437429855240462114489441553704488059887 : CDD0E27347F609E9
2020-09-30Ryan PropperF-ECMFactor: 96437429855240462114489441553704488059887
2020-04-17Oliver KruseC-PRPM4297/893777/7216656809/38621221151/159192819445156024316231213591/251736881721481941186714048623290127 : CDD0E27347F609E9
2017-12-07ATHC-PRPM4297/893777/7216656809/38621221151/159192819445156024316231213591/251736881721481941186714048623290127 : 020BE1278154843A
2017-10-02kkmrkkblmbrbkC-PRPM4297/893777/7216656809/38621221151/159192819445156024316231213591/251736881721481941186714048623290127 : 020BE1278154843A
2017-09-21Oliver KruseC-PRPM4297/known_factors : 020BE1278154843A
2009-10-25Carsten KossendeyFFactor: 34518759176677327