is 2 25091197 - 1
has 7553203 decimal digits
takes 21.502 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
Actual2671.184262.6866%----1.184262.6866%0.0000%
PrimeNet2660.588662.1212%11000040000000.40004.9800%0.988664.0076%1.8863%
GPU722709.523364.2857%18000055000000.58383.7344%10.107165.6194%1.3337%
Difference-3-8.3390-1.5991%-180000-5500000-0.5838-3.7344%-8.9229-2.9329%-2.9329%

Known prime factors (3 factors, 145.7 bits, 0.00058076% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2509119759717048871032.475119
7 × 17
-7172.339e-119.375e-61.770e-5
25091197556812897538396791755.6281109578187
1109578187
2015-08-06111095781870.000375.117140.30
250911972208124596273508071857.6164400197799
4400197799
2015-08-06144001977990.0014297.89556.37

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
250911973325122301374674380988112732788.104
2509119713186268442671410130252938092890.091
250911971229512254576854627363281496927095335113.244
250911977342284339282990895313872039556210485724731144145.719
P-1 results:
No P-1 results for M25091197


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2015-02-04T12:34:00TJAOIManual testing255256*55.628178.39274e-544.390.000
2015-07-03T11:11:00TJAOIManual testing257258*57.616180.00144.390.001
2022-06-24T06:01:07LordJuliusManual testing2126057.616180.00144.390.003
2022-06-24T06:01:07LordJuliusManual testing2126055.628170.00044.390.001
2022-06-24T06:01:07LordJuliusManual testing2126032.475102.33909e-1144.394.82925e-11


ECM factoring results:
No ECM results for M25091197


Lucas-Lehmer results:
No L-L results for M25091197


PRP results:
No PRP results for M25091197


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
260
258
256
230
240
250
260
270
280
290
2100
Last modified: 2022-06-24T06:01:07+00:00