is 2 56960191 - 1
has 17146727 decimal digits
takes 120.724 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
Actual2670.521761.1940%----0.521761.1940%0.0000%
PrimeNet2692.096062.3188%240000110000002.53925.4719%4.635164.3807%2.0619%
GPU7227333.582164.3836%400000130000003.33904.0681%36.921165.8325%1.4489%
Difference-6-33.0605-3.1895%-400000-13000000-3.3390-4.0681%-36.3994-4.6384%-4.6384%

Known prime factors (3 factors, 131.8 bits, 0.00023140% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
56960191105945955271133.30393
3 × 31
-3312.049e-111.391e-51.876e-5
569601915153220377476971548.8724523528
23 × 565441
2008-09-3085654417.364e-70.09470.1768
569601918700333110123111549.6287637205
3 × 5 × 509147
2008-09-3055091471.415e-60.08530.1592

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
5696019154596285560862757907513192582.175
5696019192176510251920299625328972582.931
569601914483473387392399331414788977673098.501
56960191475005870954910521504049138844714848820940131.803
P-1 results:
No P-1 results for M56960191


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-30T05:33:00markrManual testing??48.872157.80855e-8248.21.60524e-7
2008-09-30T05:33:00markrManual testing??49.628159.83194e-8248.22.02120e-7


ECM factoring results:
No ECM results for M56960191


Lucas-Lehmer results:
No L-L results for M56960191


PRP results:
No PRP results for M56960191


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
TF factor-bounds graph:
267
2
230
240
250
260
270
280
290
2100
Last modified: 2008-09-30T05:33:10+00:00