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
70529Factored
FactorDigitsBitsDate
42683107894729911651.9old
380091851429321211755.12008-08-26 20:09:17
3614889393958364296185233623610443750560141134.72017-01-12 15:44:12
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001244 / 1566
Estimated T-Level: 34.0
TF below 2^108 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseC4FCAA5A967166AE3013
Verified2017-10-02kkmrkkblmbrbkC4FCAA5A967166AE3013
Verified2017-12-07ATHC4FCAA5A967166AE3353013
Verified2020-04-17Oliver Kruse9B19A19DAFC2927936138653
Verified2024-02-03Wentao Huang9B19A19DAFC2927935183053
P-1 factors
DateFactorB1B2
2017-01-123614889393958364296185233623610443750560110000000012720901946406
History
DateUserTypeResult
2024-02-05masserNF-PP1
Start=93/71, B1=25000000, B2=1775000000
2024-02-05masserNF-PP1
Start=6/5, B1=25000000, B2=1775000000
2024-02-03Wentao HuangC-PRP
M70529/4268310789472991/38009185142932121/36148893939583642961852336236104437505601 : 9B19A19DAFC29279
PRP: Verified
PRP without proof (small exponent)
2024-02-03masserNF-PP1
Start=2/7, B1=25000000, B2=1775000000
2022-05-02George WoltmanNF-PM1
B1=1000000000, B2=95443272064140
2020-04-17Oliver KruseC-PRP
M70529/4268310789472991/38009185142932121/36148893939583642961852336236104437505601 : 9B19A19DAFC29279
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M70529/4268310789472991/38009185142932121/36148893939583642961852336236104437505601 : C4FCAA5A967166AE
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M70529/4268310789472991/38009185142932121/36148893939583642961852336236104437505601 : C4FCAA5A967166AE
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M70529/4268310789472991/38009185142932121/36148893939583642961852336236104437505601 : C4FCAA5A967166AE
PRP without proof (not generated)
2017-01-12kkmrkkblmbrbkF-PM1
Factor: 36148893939583642961852336236104437505601 / (P-1, B1=100000000, B2=12720901946406)
2016-11-18kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F-ECM
Factor: 38009185142932121