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:










MnStatusDetails
4463Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
14986039931030.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000017620 / 40830
Estimated T-Level: 52.2
TF below 2^168 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse26868237725820B41013
Verified2017-10-12kkmrkkblmbrbk26868237725820B41407013
Verified2020-04-17Oliver KruseFBC720DC2C398A9A1430353
Verified2024-02-03Wentao HuangFBC720DC2C398A9A1423053
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M4463/1498603993 : FBC720DC2C398A9A
PRP: Verified
PRP without proof (small exponent)
2023-05-23-Anonymous-NF-PM1
B1=72000000000, B2=721841185927912050
2021-07-06ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M4463/1498603993 : FBC720DC2C398A9A
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M4463/1498603993 : 26868237725820B4
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4463/1498603993 : 26868237725820B4
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4463/1498603993 : 26868237725820B4
PRP without proof (not generated)