is 2 397607057 - 1
has 119691651 decimal digits
takes 7,572.942 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2680.149957.3529%----0.149957.3529%0.0000%
PrimeNet27776.980962.3377%1500000100000000189.63445.8890%266.615464.5556%2.2179%
GPU722811,231.701764.1975%2400000100000000213.13574.3912%1,444.837465.7697%1.5722%
Difference-13-1,231.5518-6.8446%-2400000-100000000-213.1357-4.3912%-1,444.6875-8.4167%-8.4167%

Known prime factors (2 factors, 133.1 bits, 0.00003348% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
397607057592385546821776768732065.68374493842148
22 × 32 × 112 × 17101433
2014-06-03121171014330.023225.73548.060
3976070572010193453006977911772167.446252786440484
22 × 32 × 337 × 20836337
2022-08-05337208363370.131731.36058.556

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
3976070571190809547877094232408086686896833634952141133.129
P-1 results:
No P-1 results for M397607057


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-06-03T16:17:00tschpxw6600-4??65.683200.00515,5070.010
2010-05-08T03:30:00Architects Cubedm1_67264265--0.009--
2022-08-05T09:35:52TJAOIManual testing267268*67.446210.05715,5060.117
2022-08-10T19:29:46LordJuliusManual testing2126867.446210.13215,5060.270
2022-08-10T19:29:46LordJuliusManual testing2126865.683200.02315,5070.047


ECM factoring results:
No ECM results for M397607057


Lucas-Lehmer results:
No L-L results for M397607057


PRP results:
No PRP results for M397607057


P-1 factor-bounds graph:
101
102
103
101
102
103
104
105
106
107
108
TF factor-bounds graph:
268
265
2
250
260
270
280
290
2100
Last modified: 2022-08-10T19:29:46+00:00