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

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MnStatusDetails
3074299Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
408328393191135.2old
571107950667000887992065.62019-02-19 11:24:57
14254682343610867435121194812890.22021-03-04 23:53:16
ECM
DigitsB1Curves
255000061 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-29Oliver Kruse7EF4A89A38321B98138111553
Verified (Factored)2017-12-11kkmrkkblmbrbk7EF4A89A38321B981127264053
Verified (Factored)2019-02-20artorollo7EF4A89A38321B98273818653
Verified (Factored)2019-02-20alex7EF4A89A38321B982127807953
Verified2021-03-05riccardo uberti7EF4A89A38321B983103412953
P-1 factors
DateFactorB1B2
2021-03-0414254682343610867435121194813074293381728
History
DateUserTypeResult
2022-10-06JossNF-PM1
B1=3074299, B2=433737150
2022-03-14LordJuliusNF
no factor from 2^66 to 2^67
2022-01-11JossNF
no factor from 2^68 to 2^69
2021-12-19JossNF-PM1
B1=3074299, B2=326903850
2021-06-20JossNF-PM1
B1=3074299
2021-04-10JossNF
no factor from 2^67 to 2^68
2021-03-06riccardo ubertiNF-PM1
B1=5000000, B2=80000000, E=12
2021-03-05JossNF-PM1
B1=307429, B2=9530326, E=6
2021-03-05JossNF-PM1
B1=307429, B2=6456027, E=6
2021-03-05curtiscCERT
PRP Certification
Proof certified good
2021-03-05riccardo ubertiC-PRP
M3074299/40832839319/57110795066700088799/1425468234361086743512119481 : 7EF4A89A38321B98
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-04JossF-PM1
Factor: 1425468234361086743512119481 / (P-1, B1=307429, B2=3381728, E=6)
2019-02-20alexC-PRP
M3074299/40832839319/57110795066700088799 : 7EF4A89A38321B98
PRP: Verified (Factored)
PRP without proof (not generated)
2019-02-20artorolloC-PRP
M3074299/40832839319/57110795066700088799 : 7EF4A89A38321B98
PRP: Verified (Factored)
PRP without proof (not generated)
2019-02-19TJAOIF
Factor: 57110795066700088799 / TF: 65-66
2017-12-11kkmrkkblmbrbkC-PRP
M3074299/40832839319 : 7EF4A89A38321B98
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-29Oliver KruseC-PRP
M3074299/40832839319 : 7EF4A89A38321B98
PRP: Verified (Factored)
PRP without proof (not generated)