Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
1684877Factored
FactorDigitsBitsDate
1849108988230178971912167.32014-02-07 18:53:58
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.
LL
StatusDateUserResidueShift
Verified (Factored)Richard B. WoodsF2854F927EB0DAA00
Verified (Factored)1998-11-21Scott TerryF2854F927EB0DAA01648915
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-03Oliver Kruse0A3F5DC16B3914AB1013
Verified2017-11-03ATH0A3F5DC16B3914AB198936313
History
DateUserTypeResult
2022-03-08LordJuliusNF
no factor from 2^58 to 2^60
2017-11-03ATHC-PRP
M1684877/184910898823017897191 : 0A3F5DC16B3914AB
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1684877/184910898823017897191 : 0A3F5DC16B3914AB
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-02-07Never Odd Or EvenF
Factor: 184910898823017897191 / TF: 67-68
2014-01-18Never Odd Or EvenNF
no factor from 2^69 to 2^70
2014-01-18Never Odd Or EvenNF
no factor from 2^68 to 2^69
2014-01-18Never Odd Or EvenNF
no factor from 2^67 to 2^68
2014-01-18Never Odd Or EvenNF
no factor from 2^66 to 2^67
2014-01-18Never Odd Or EvenNF
no factor from 2^65 to 2^66
2008-11-26Richard B. WoodsNF-PM1
B1=10000000
2008-11-26Richard B. WoodsNF
no factor to 2^65
2008-11-12Richard B. WoodsNF-PM1
B1=8000000
2008-11-12Richard B. WoodsNF-PM1
B1=6000000
2008-11-12Richard B. WoodsNF-PM1
B1=5000000