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
7477
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
830332320863038492191083049874468967337122.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003882 / 16550
Estimated T-Level: 46.2
TF below 2^148 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 KruseE0F8DACA665A1C911013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbkE0F8DACA665A1C911476113
Verified
No proof (small exponent)
2020-04-17Oliver Kruse93D1D086F13CE0001627653
Verified
No proof (small exponent)
2024-02-03Wentao Huang93D1D086F13CE0001197853
History
DateUserTypeResult
2025-04-05masserNF-PP1Start=198/29, B1=830000000, B2=829170000000
2025-03-26masserNF-PP1Start=6/5, B1=830000000, B2=829170000000
2025-03-17masserNF-PP1Start=2/7, B1=830000000, B2=829170000000
2024-02-03Wentao HuangC-PRPM7477/8303323208630384921910830498744689673 : 93D1D086F13CE000
2023-09-01-anonymous-NF-PM1B1=40000000000, B2=169617550478676300
2021-07-05ViliamFNF-PM1B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRPM7477/8303323208630384921910830498744689673 : 93D1D086F13CE000
2017-10-12kkmrkkblmbrbkC-PRPM7477/8303323208630384921910830498744689673 : E0F8DACA665A1C91
2017-09-21Oliver KruseC-PRPM7477/8303323208630384921910830498744689673 : E0F8DACA665A1C91
2017-09-21Oliver KruseC-PRPM7477/8303323208630384921910830498744689673 : E0F8DACA665A1C91
2003-02-16-anonymous-NF-PM1B1=4290000000
2002-12-25-anonymous-NFno factor TF: 1-57
2002-10-12-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-08-24-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2002-06-09-anonymous-NF-PM1B1=1073741824, B2=4290000000, E=48
2001-08-31-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-06-23-anonymous-NF-PM1B1=43000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2000-07-25-anonymous-NFno factor TF: 1-56
2000-02-23-anonymous-NFno factor TF: 54-55
1999-12-30-anonymous-NFno factor TF: 53-54
1999-09-22-anonymous-NFno factor TF: 52-53