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

PrimeNet Exponent Status

Exponent Range:





MnDetails
1451
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-10-27masserECM2026-10-272026-11-10
2026-10-27masserECM2026-10-272026-11-09
2026-10-27masserECM2026-10-272026-11-09
2026-10-27masserECM2026-10-272026-11-09
2026-10-25masserECM2026-10-272026-11-08
2026-10-25masserECM2026-10-272026-11-08
2026-10-25masserECM2026-10-272026-11-07
2026-10-24masserECM2026-10-272026-11-07
2026-10-24masserECM2026-10-272026-11-07
2026-10-24masserECM2026-10-272026-11-07
2026-10-22masserECM2026-10-272026-11-04
2026-10-22masserECMC1S22026-10-272026-11-03
Factored
FactorDigitsBitsDate
2903411.5old
174121617.4old
696481619.4old
170091429108137511753.9old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000056686 / 105362
Estimated T-Level: 57.7 ⓘ
TF below 2^187 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver Kruse89EA56F359B5226E4013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbk89EA56F359B5226E4103513
Verified
No proof (small exponent)
2020-04-17Oliver KruseFAA6B08997FF2892447753
Verified
No proof (small exponent)
2020-08-12_p95holder_FAA6B08997FF28924116153
Factored
No proof (small exponent)
2022-05-12Jorge CoveiroFAA6B08997FF28921122153
History
DateUserTypeResult
2022-05-12Jorge CoveiroC-PRP
M1451/2903 : FAA6B08997FF2892
2021-07-20ViliamFNF-PP1Start=2/7, B1=1000000000, B2=221000000000
2021-03-27nordiNF-PM1B1=1000000000000, B2=2232843418649129478
2020-08-12_p95holder_C-PRP
M1451/2903/174121/696481/17009142910813751 : FAA6B08997FF2892
2020-04-17Oliver KruseC-PRP
M1451/2903/174121/696481/17009142910813751 : FAA6B08997FF2892
2017-10-12kkmrkkblmbrbkC-PRPM1451/2903/174121/696481/17009142910813751 : 89EA56F359B5226E
2017-09-21Oliver KruseC-PRPM1451/2903/174121/696481/17009142910813751 : 89EA56F359B5226E
2017-09-21Oliver KruseC-PRPM1451/2903/174121/696481/17009142910813751 : 89EA56F359B5226E
2016-09-07kkmrkkblmbrbkNF-PM1B1=1000000000, B2=100000000000, E=12