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

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MnStatusDetails
483481Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
14504431823.8old
33843671825.02008-07-21 09:20:13
16520429734571340.62008-07-21 09:20:13
9469608358325211549.82014-05-09 18:34:40
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver KruseF8EFFB2FCD8F9F3F4013
Verified2017-10-13Oliver KruseF8EFFB2FCD8F9F3F49793713
Verified2017-12-16ATHF8EFFB2FCD8F9F3F435583413
Verified2020-04-18Oliver KruseA66208D4479648B1434050153
Verified2024-11-26kkmrkkblmbrbkA66208D4479648B1419990053
History
DateUserTypeResult
2024-11-26XyzzyCERT
PRP Certification
Proof certified good
2024-11-26kkmrkkblmbrbkC-PRP
M483481/14504431/33843671/1652042973457/946960835832521 : A66208D4479648B1
PRP proof power = 6
PRP: Verified
Proof certified good
2024-08-22cramsey87NF-PM1
B1=7000000, B2=42834594660
2020-04-18Oliver KruseC-PRP
M483481/14504431/33843671/1652042973457/946960835832521 : A66208D4479648B1
PRP: Verified
PRP without proof (small exponent)
2017-12-16ATHC-PRP
M483481/14504431/33843671/1652042973457/946960835832521 : F8EFFB2FCD8F9F3F
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M483481/14504431/1652042973457/33843671/946960835832521 : F8EFFB2FCD8F9F3F
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M483481/14504431/1652042973457/33843671/946960835832521 : F8EFFB2FCD8F9F3F
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M483481/14504431/1652042973457/33843671/946960835832521 : F8EFFB2FCD8F9F3F
PRP without proof (not generated)
2014-05-09TJAOIF
Factor: 946960835832521
2008-07-21J FeitsmaF
Factor: 33843671
2008-07-21J FeitsmaF
Factor: 1652042973457