Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
306589Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
1526077406411237.2old
25958193959935962711961.22015-02-27 10:13:25
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000167 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseDE24D06C2E26AB432013
Verified2017-09-24Oliver KruseDE24D06C2E26AB432013
Verified2017-11-07kkmrkkblmbrbkDE24D06C2E26AB43217451413
Verified2020-04-18Oliver Kruse0C2FEA21EE59FD51226499253
Verified2024-08-25kkmrkkblmbrbk0C2FEA21EE59FD51227739653
History
DateUserTypeResult
2024-08-25WilliamStuckeCERT
PRP Certification
Proof certified good
2024-08-25kkmrkkblmbrbkC-PRP
M306589/152607740641/2595819395993596271 : 0C2FEA21EE59FD51
PRP proof power = 5
PRP: Verified
Proof certified good
2024-02-23Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-17Denial140NF-PM1
B1=1000000, B2=65871826020
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M306589/152607740641/2595819395993596271 : 0C2FEA21EE59FD51
PRP: Verified
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M306589/152607740641/2595819395993596271 : DE24D06C2E26AB43
PRP: Verified
PRP without proof (small exponent)
2017-09-24Oliver KruseC-PRP
M306589/152607740641/2595819395993596271 : DE24D06C2E26AB43
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M306589/152607740641/2595819395993596271 : DE24D06C2E26AB43
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M306589/152607740641/2595819395993596271 : DE24D06C2E26AB43
PRP without proof (not generated)
2015-02-27TJAOIF-ECM
Factor: 2595819395993596271 / (ECM curve 11, B1=50000, B2=5000000)