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
6277Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
37663515.2old
11634042891030.1old
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 KruseE232A6E76AC46A7C2013
Verified2017-10-12kkmrkkblmbrbkE232A6E76AC46A7C2339513
Verified2020-04-17Oliver KruseE841D4363B0491F82171953
Verified2024-02-03Wentao HuangE841D4363B0491F82155453
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6277/37663/1163404289 : E841D4363B0491F8
PRP: Verified
PRP without proof (small exponent)
2023-08-02-Anonymous-NF-PM1
B1=39000000000, B2=163113042636343800
2021-08-01ViliamFNF-PM1
B1=500000000, B2=90500000000
2020-04-17Oliver KruseC-PRP
M6277/37663/1163404289 : E841D4363B0491F8
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6277/37663/1163404289 : E232A6E76AC46A7C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6277/37663/1163404289 : E232A6E76AC46A7C
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6277/37663/1163404289 : E232A6E76AC46A7C
PRP without proof (not generated)