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
92821Factored
FactorDigitsBitsDate
954942449929.8old
27846300011031.42008-08-26 20:11:41
604206014454747632489752377758331102.32021-04-24 10:32:21
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000384 / 1566
Estimated T-Level: 31.2
TF below 2^99 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver Kruse66122DC5013484452013
Verified (Factored)2017-10-13kkmrkkblmbrbk66122DC50134844521096513
Verified (Factored)2020-04-17Oliver KruseD605B0022EDE975F26905453
Verified2021-04-24mnd9D605B0022EDE975F34139953
Verified2021-04-24Kirill FrolovD605B0022EDE975F37916553
Verified2021-04-24nordiD605B0022EDE975F37327053
History
DateUserTypeResult
2022-07-23George WoltmanNF-PM1
B1=1000000000, B2=70552596864750
2021-04-24nordiC-PRP
M92821/954942449/2784630001/6042060144547476324897523777583 : D605B0022EDE975F
PRP: Verified
PRP without proof (small exponent)
2021-04-24Kirill FrolovC-PRP
M92821/954942449/2784630001/6042060144547476324897523777583 : D605B0022EDE975F
PRP: Verified
PRP without proof (small exponent)
2021-04-24mnd9C-PRP
M92821/954942449/2784630001/6042060144547476324897523777583 : D605B0022EDE975F
PRP: Verified
PRP without proof (small exponent)
2021-04-24nordiF-PP1
Start=2/7, B1=40000000, B2=5240000000, Factor: 6042060144547476324897523777583
2020-04-17Oliver KruseC-PRP
M92821/954942449/2784630001 : D605B0022EDE975F
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M92821/954942449/2784630001 : 66122DC501348445
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M92821/954942449/2784630001 : 66122DC501348445
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M92821/954942449/2784630001 : 66122DC501348445
PRP without proof (not generated)
2016-12-17kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F
Factor: 2784630001