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
7549
Composite, with 4 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
74607672891032.8old
48905125715807782395612272.1old
8047305482888594058235279462849351135116.02017-03-16 03:50:14
2293231836257025313843504047042791733684496843438615153173.92025-08-10 03:30:13
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000008354 / 16550
Estimated T-Level: 47.5 ⓘ
TF below 2^153 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 Kruse33CB2AFF15B45C203013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk33CB2AFF15B45C203013
Factored
No proof (small exponent)
2017-12-07ATH33CB2AFF15B45C203105113
Factored
No proof (small exponent)
2020-04-17Oliver Kruse7B2B9C2187BF4A0D3627753
Factored
No proof (small exponent)
2024-02-03Wentao Huang7B2B9C2187BF4A0D3441253
Verified
No proof (small exponent)
2025-08-15Kamil Gorski7B2B9C2187BF4A0D4306753
History
DateUserTypeResult
2025-08-15Kamil GorskiC-PRPM7549/7460767289/4890512571580778239561/80473054828885940582352794628493511/22932318362570253138435040470427917336844968434386151 : 7B2B9C2187BF4A0D
2025-08-10Ryan PropperF-ECMFactor: 22932318362570253138435040470427917336844968434386151
2025-04-06masserNF-PP1Start=106/59, B1=830000000, B2=829170000000
2025-03-28masserNF-PP1Start=6/5, B1=830000000, B2=829170000000
2025-03-19masserNF-PP1Start=2/7, B1=830000000, B2=829170000000
2024-11-14masserNF-PM1B1=50000000000, B2=201265614041391900
2024-02-03Wentao HuangC-PRPM7549/7460767289/4890512571580778239561/80473054828885940582352794628493511 : 7B2B9C2187BF4A0D
2021-07-06ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRPM7549/7460767289/4890512571580778239561/80473054828885940582352794628493511 : 7B2B9C2187BF4A0D
2017-12-07ATHC-PRPM7549/7460767289/4890512571580778239561/80473054828885940582352794628493511 : 33CB2AFF15B45C20
2017-10-02kkmrkkblmbrbkC-PRPM7549/7460767289/4890512571580778239561/80473054828885940582352794628493511 : 33CB2AFF15B45C20
2017-09-21Oliver KruseC-PRPM7549/known_factors : 33CB2AFF15B45C20
2017-03-16kkmrkkblmbrbkF-ECMFactor: 80473054828885940582352794628493511