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
4229Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
329863618.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000019053 / 40830
Estimated T-Level: 52.3
TF below 2^169 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse6F46FCE005A689531013
Verified2017-10-12kkmrkkblmbrbk6F46FCE005A689531365513
Verified2020-04-17Oliver KruseBEBFE342370C5BBA123453
Verified2024-02-03Wentao HuangBEBFE342370C5BBA172553
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M4229/329863 : BEBFE342370C5BBA
PRP: Verified
PRP without proof (small exponent)
2023-05-19-Anonymous-NF-PM1
B1=76000000000, B2=761666906426476050
2021-07-05ViliamFNF-PM1
B1=1000000000, B2=201000000000
2020-04-17Oliver KruseC-PRP
M4229/329863 : BEBFE342370C5BBA
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M4229/329863 : 6F46FCE005A68953
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4229/329863 : 6F46FCE005A68953
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M4229/329863 : 6F46FCE005A68953
PRP without proof (not generated)