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

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MnStatusDetails
2097983Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
67135457826.0old
359455702257464502652392374.92022-06-04 10:55:36
280509177981530142263400408400731101.12024-10-23 07:33:56
ECM
DigitsB1Curves
2550000280 / 280
30250000160 / 640
Estimated T-Level: 26.3 ⓘ
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-06Oliver Kruse3ECEAAEA618AB4BB1013
Verified (Factored)2017-11-17kkmrkkblmbrbk3ECEAAEA618AB4BB1123901013
Verified (Factored)2022-06-13XZT1AE04C37107557452135450653
Verified2024-10-23Naegi Makoto1AE04C37107557453150171953
History
DateUserTypeResult
2024-10-23riccardo ubertiCERT
PRP Certification
Proof certified good
2024-10-23Naegi MakotoC-PRP
M2097983/67135457/35945570225746450265239/2805091779815301422634004084007 : 1AE04C3710755745
PRP proof power = 7
PRP: Verified
Proof certified good
2024-10-23TJAOIF-ECM
Factor: 2805091779815301422634004084007 / (ECM curve 57, B1=250000, B2=251325195, Edwards Sigma=5095854615546571)
2022-06-13Ron LeShaneCERT
PRP Certification
Proof certified good
2022-06-13XZTC-PRP
M2097983/67135457/35945570225746450265239 : 1AE04C3710755745
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2022-06-04_p95holder_F-ECM
Factor: 35945570225746450265239 / (ECM curve 6, B1=50000, B2=5000000)
2017-11-17kkmrkkblmbrbkC-PRP
M2097983/67135457 : 3ECEAAEA618AB4BB
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2097983/67135457 : 3ECEAAEA618AB4BB
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12