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
70537Factored
FactorDigitsBitsDate
85017320808722611605048417515242333109.42010-07-14 00:12:32
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001239 / 1566
Estimated T-Level: 34.0
TF below 2^108 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown08680
Verified (Factored)Will Edgington0A92D8D7252C88680
Verified (Factored)Brian J. Beesley0A92D8D7252C88680
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse9C54BE864FCFEEFF1013
Verified2017-10-13kkmrkkblmbrbk9C54BE864FCFEEFF16646013
Verified2020-04-17Oliver Kruse8CC780A287BA4D2113280653
Verified2024-02-03Wentao Huang8CC780A287BA4D2113728253
History
DateUserTypeResult
2024-02-05masserNF-PP1
Start=136/47, B1=25000000, B2=1775000000
2024-02-05masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-02-03Wentao HuangC-PRP
M70537/850173208087226116050484175152423 : 8CC780A287BA4D21
PRP: Verified
PRP without proof (small exponent)
2024-02-03masserNF-PP1
Start=2/7, B1=25000000, B2=1775000000
2022-05-07LordJuliusNF
no factor from 2^58 to 2^59
2022-05-07LordJuliusNF
no factor from 2^57 to 2^58
2022-05-02George WoltmanNF-PM1
B1=1000000000, B2=95443272064140
2020-04-17Oliver KruseC-PRP
M70537/850173208087226116050484175152423 : 8CC780A287BA4D21
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M70537/850173208087226116050484175152423 : 9C54BE864FCFEEFF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M70537/850173208087226116050484175152423 : 9C54BE864FCFEEFF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M70537/850173208087226116050484175152423 : 9C54BE864FCFEEFF
PRP without proof (not generated)
2016-11-18kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2010-07-14Never Odd Or EvenF-ECM
Factor: 850173208087226116050484175152423
2009-02-07Sturle SundeNF
no factor from 2^59 to 2^60