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
28499Factored
FactorDigitsBitsDate
56999515.8old
227993617.82008-08-26 19:59:19
3647873721.82008-08-26 19:59:19
10485517954863486817672269.82009-04-04 14:31:46
1067631673458405135652541474180639935113.02018-02-09 18:39:33
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000661 / 4588
Estimated T-Level: 35.7 ⓘ
TF below 2^114 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse6A022E709D9065094013
Verified (Factored)2017-10-02kkmrkkblmbrbk6A022E709D9065094013
Verified (Factored)2017-12-07ATH6A022E709D9065094121113
Verified2018-02-09ANONYMOUS581E765A716E1D1C51424453
Verified2018-02-10Daniel Bamberger581E765A716E1D1C597053
Verified (Factored)2022-05-12Jorge Coveiro581E765A716E1D1C1147853
History
DateUserTypeResult
2023-02-19nordiNF-PM1
B1=3000000000, B2=925584566816910
2022-10-15nordiNF-PM1
B1=3000000000
2022-05-12Jorge CoveiroC-PRP
M28499/56999 : 581E765A716E1D1C
PRP: Verified (Factored)
PRP without proof (small exponent)
2018-02-10Daniel BambergerC-PRP
M28499/56999/227993/3647873/1048551795486348681767/10676316734584051356525414741806399 : 581E765A716E1D1C
PRP: Verified (Factored)
PRP without proof (small exponent)
2018-02-09ANONYMOUSC-PRP
M28499/56999/227993/3647873/1048551795486348681767/10676316734584051356525414741806399 : 581E765A716E1D1C
PRP: Verified (Factored)
PRP without proof (small exponent)
2018-02-09nordiF-ECM
Factor: 10676316734584051356525414741806399 / (ECM curve 460, B1=3000000, B2=300000000)
2017-12-07ATHC-PRP
M28499/56999/227993/3647873/1048551795486348681767 : 6A022E709D906509
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M28499/56999/227993/3647873/1048551795486348681767 : 6A022E709D906509
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M28499/56999/227993/3647873/1048551795486348681767 : 6A022E709D906509
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M28499/56999/227993/3647873/1048551795486348681767 : 6A022E709D906509
PRP without proof (not generated)
2016-12-28kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12
2009-04-04Matthias WurtingerF-ECM
Factor: 1048551795486348681767
2008-08-26-Anonymous-F
Factor: 3647873
2008-08-26-Anonymous-F
Factor: 227993