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

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MnStatusDetails
2212333Composite, with 5 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
141589313927.1old
323487331271134.92008-07-14 20:22:00
1217314109931236.82008-07-14 20:22:00
2435117722304066051775923772787.72025-03-19 22:16:22
20622444206705610636170713192890.72025-05-16 09:35:39
ECM
DigitsB1Curves
2550000280 / 280
30250000174 / 640
Estimated T-Level: 26.4
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-09Oliver KruseD351236CB54EAA793013
Verified (Factored)2017-11-20kkmrkkblmbrbkD351236CB54EAA793201349313
Verified (Factored)2025-03-19MarkS5416DF1C234CD4744125859153
Verified2025-05-23Sidi5416DF1C234CD4745205180253
History
DateUserTypeResult
2025-05-24ShafferCERT
PRP Certification
Proof certified good
2025-05-23SidiC-PRP
M2212333/141589313/32348733127/121731410993/243511772230406605177592377/2062244420670561063617071319 : 5416DF1C234CD474
PRP proof power = 7
PRP: Verified
Proof certified good
2025-05-16TJAOIF-ECM
Factor: 2062244420670561063617071319 / (ECM curve 54, B1=250000, B2=254050335, Edwards Sigma=4345287893611129)
2025-03-19stenleiCERT
PRP Certification
Proof certified good
2025-03-19MarkSC-PRP
M2212333/141589313/32348733127/121731410993/243511772230406605177592377 : 5416DF1C234CD474
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2025-03-19MarkSF-ECM
Factor: 243511772230406605177592377 / (ECM curve 10, B1=92670, B2=147138915, Edwards Sigma=2372785915327244)
2017-11-20kkmrkkblmbrbkC-PRP
M2212333/141589313/121731410993/32348733127 : D351236CB54EAA79
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-09Oliver KruseC-PRP
M2212333/141589313/121731410993/32348733127 : D351236CB54EAA79
PRP: Verified (Factored)
PRP without proof (not generated)
2016-04-21alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-14George WoltmanF-ECM
Factor: 32348733127
2008-07-14George WoltmanF-ECM
Factor: 121731410993