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

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MnStatusDetails
297911Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
29195279824.8old
17803161371030.72008-07-21 09:16:10
5252456924571238.92008-07-21 09:16:10
6444514846798477371859.22014-09-15 12:12:26
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000192 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse3B7ABF610C550ED54013
Verified2017-10-12Oliver Kruse3B7ABF610C550ED5416747213
Verified2017-11-06kkmrkkblmbrbk3B7ABF610C550ED545682413
Verified2020-04-17Oliver Kruse428ABDC8632C2B1644455453
Verified2024-08-20kkmrkkblmbrbk428ABDC8632C2B1645270153
History
DateUserTypeResult
2024-12-02yuriy_5-1NF-PM1
B1=27407812, B2=6679632809850
2024-08-20MSKCERT
PRP Certification
Proof certified good
2024-08-20kkmrkkblmbrbkC-PRP
M297911/29195279/1780316137/525245692457/644451484679847737 : 428ABDC8632C2B16
PRP proof power = 5
PRP: Verified
Proof certified good
2024-03-14USAFSSNF-PM1
B1=3750000, B2=34831638660
2023-11-11Gabriel LignelliNF-PM1
B1=59000
2023-09-24NumberwangNF-PP1
Start=2/7, B1=90000, B2=27000000
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2021-04-28nordiNF-PP1
Start=6/5, B1=10000000, B2=500000000
2021-04-22nordiNF-PP1
Start=2/7, B1=10000000, B2=500000000
2020-04-17Oliver KruseC-PRP
M297911/29195279/1780316137/525245692457/644451484679847737 : 428ABDC8632C2B16
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M297911/29195279/1780316137/525245692457/644451484679847737 : 3B7ABF610C550ED5
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M297911/29195279/1780316137/525245692457/644451484679847737 : 3B7ABF610C550ED5
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M297911/known_factors : 3B7ABF610C550ED5
PRP without proof (not generated)
2014-09-15TJAOIF-ECM
Factor: 644451484679847737
2008-07-21J FeitsmaF
Factor: 525245692457
2008-07-21J FeitsmaF
Factor: 1780316137