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
1808207Factored
FactorDigitsBitsDate
9500147328201191549.8old
10874891012011486094232269.92021-01-07 02:05:49
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-03Oliver Kruse47A876271BA090DD1013
Verified (Factored)2017-11-05kkmrkkblmbrbk47A876271BA090DD115474513
Verified (Factored)2021-01-07Jay G.05B63FE0083D72C81172543653
Verified2021-01-07ViliamF05B63FE0083D72C826853253
Verified2021-01-07Lisander Viaene05B63FE0083D72C825614553
History
DateUserTypeResult
2021-01-07Ben DeloCERT
PRP Certification
Proof certified good
2021-01-07Lisander ViaeneC-PRP
M1808207/950014732820119/1087489101201148609423 : 05B63FE0083D72C8
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-07Ben DeloCERT
PRP Certification
Proof certified good
2021-01-07ViliamFC-PRP
M1808207/950014732820119/1087489101201148609423 : 05B63FE0083D72C8
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-07Jay G.C-PRP
M1808207/1087489101201148609423 : 05B63FE0083D72C8
PRP proof power = 7
PRP: Verified (Factored)
PRP proof never uploaded
2021-01-07_p95holder_F-ECM
Factor: 1087489101201148609423 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-05kkmrkkblmbrbkC-PRP
M1808207/950014732820119 : 47A876271BA090DD
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1808207/950014732820119 : 47A876271BA090DD
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12