Marin Mersenne 2^P-1
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MnStatusDetails
6211Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
111019686054071118830681252381762431963336309981828680155179.52009-06-25 11:02:18
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000003502 / 16550
Estimated T-Level: 46.1
TF below 2^148 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown72AA0
Verified (Factored)George Woltman320C67EBCB30F2AA0
Verified (Factored)Brian J. Beesley320C67EBCB30F2AA0
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseD8127C8FD303A1531013
Verified2017-10-02kkmrkkblmbrbkD8127C8FD303A1531013
Verified2017-12-07ATHD8127C8FD303A1531367813
Verified2020-04-17Oliver KruseBFFF3C8FDE895C32188353
Verified2024-02-03Wentao HuangBFFF3C8FDE895C321538653
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6211/1110196860540711188306812523817624319633363099818286801 : BFFF3C8FDE895C32
PRP: Verified
PRP without proof (small exponent)
2023-07-31-Anonymous-NF-PM1
B1=40000000000, B2=169615672618692300
2021-08-01ViliamFNF-PM1
B1=500000000, B2=90500000000
2020-04-17Oliver KruseC-PRP
M6211/1110196860540711188306812523817624319633363099818286801 : BFFF3C8FDE895C32
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M6211/1110196860540711188306812523817624319633363099818286801 : D8127C8FD303A153
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M6211/1110196860540711188306812523817624319633363099818286801 : D8127C8FD303A153
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6211/known_factors : D8127C8FD303A153
PRP without proof (not generated)
2009-06-25eteoF-ECM
Factor: 1110196860540711188306812523817624319633363099818286801