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
109541
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
876329619.7old
111317676150491443.32008-07-26 09:17:10
1219449627066927722332166.72010-03-07 15:36:59
11526991264525729926072270.02010-03-14 18:48:27
281374599140722280971963372684.52010-06-01 19:19:52
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000734 / 1566
Estimated T-Level: 32.3
TF below 2^102 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 KruseF0E8429B8EC21CB75013
Verified
No proof (small exponent)
2017-10-09Chang Chia-TcheF0E8429B8EC21CB75013
Verified
No proof (small exponent)
2017-10-13kkmrkkblmbrbkF0E8429B8EC21CB758881013
Verified
No proof (small exponent)
2020-04-17Oliver KruseAA66E60BBC7F0D3F59786153
Verified
Not Uploaded
2022-04-15LordJuliusAA66E60BBC7F0D3F51596653
Verified
Certified Good
2022-11-11LordJuliusAA66E60BBC7F0D3F54161453
History
DateUserTypeResult
2026-02-10Jason LynchNF-PM1B1=894943000, B2=137332171046070
2025-12-17ViliamFNF-PM1B1=100000000, B2=2384204282460
2022-11-11curtiscCERT
Proof certified good
2022-11-11LordJuliusC-PRPM109541/876329/11131767615049/121944962706692772233/1152699126452572992607/28137459914072228097196337 : AA66E60BBC7F0D3F
Proof Not Uploaded

Proof Power: 5

2022-05-07LordJuliusNFno factor TF: 61-62
2022-05-07LordJuliusNFno factor TF: 62-63
2022-05-07LordJuliusNFno factor TF: 59-60
2022-05-07LordJuliusNFno factor TF: 60-61
2022-05-07LordJuliusNFno factor TF: 57-58
2022-05-07LordJuliusNFno factor TF: 58-59
2022-04-15LordJuliusC-PRPM109541/876329/11131767615049/121944962706692772233/1152699126452572992607/28137459914072228097196337 : AA66E60BBC7F0D3F
Proof Not Uploaded

Proof Power: 5

2020-04-17Oliver KruseC-PRPM109541/876329/11131767615049/121944962706692772233/1152699126452572992607/28137459914072228097196337 : AA66E60BBC7F0D3F
2017-10-13kkmrkkblmbrbkC-PRPM109541/876329/11131767615049/121944962706692772233/1152699126452572992607/28137459914072228097196337 : F0E8429B8EC21CB7
2017-10-09Chang Chia-TcheC-PRPM109541/known_factors : F0E8429B8EC21CB7
2017-09-21Oliver KruseC-PRPM109541/876329/11131767615049/121944962706692772233/1152699126452572992607/28137459914072228097196337 : F0E8429B8EC21CB7
2017-09-21Oliver KruseC-PRPM109541/876329/11131767615049/121944962706692772233/1152699126452572992607/28137459914072228097196337 : F0E8429B8EC21CB7
2016-12-10kkmrkkblmbrbkNF-PM1B1=100000000, B2=2000000000, E=12
2010-06-01Rob_DeeF-ECMFactor: 28137459914072228097196337
2010-03-14Rob_DeeF-ECMFactor: 1152699126452572992607
2010-03-07Rob_DeeF-ECMFactor: 121944962706692772233
2008-07-26J FeitsmaFFactor: 11131767615049