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
6229Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1659892408683431547.2old
18596601668894171650.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001429 / 9201
Estimated T-Level: 40.8
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse9499F139253491582013
Verified2017-10-12kkmrkkblmbrbk9499F139253491582399913
Verified2020-04-17Oliver Kruse08EE4F3B175C2DAF262253
Verified2024-02-03Wentao Huang08EE4F3B175C2DAF2566153
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
2024-10-21Denial140factor ECM small0.00 % 2024-10-24
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6229/165989240868343/1859660166889417 : 08EE4F3B175C2DAF
PRP: Verified
PRP without proof (small exponent)
2023-08-01-Anonymous-NF-PM1
B1=39000000000, B2=163113042636343800
2021-08-01ViliamFNF-PM1
B1=500000000, B2=90500000000
2020-04-17Oliver KruseC-PRP
M6229/165989240868343/1859660166889417 : 08EE4F3B175C2DAF
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6229/165989240868343/1859660166889417 : 9499F13925349158
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6229/165989240868343/1859660166889417 : 9499F13925349158
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6229/165989240868343/1859660166889417 : 9499F13925349158
PRP without proof (not generated)