is 2 59915231 - 1
has 18036282 decimal digits
takes 133.103 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2670.495961.1940 %----0.495961.1940 %
Target27331.925864.3836 %4000007000000013.50334.1523 %45.429265.8625 %
Difference-6-31.4299-3.1895 %-400000-70000000-13.5033-4.1523 %-44.9332-4.6684 %

Known prime factors (3 factors, 133.6 bits, 0.00022305% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
59915231177349083771134.046148
22 × 37
-4373.942e-111.868e-52.622e-5
5991523114470726591131340.39612076
22 × 3019
2008-09-11430193.945e-90.00050.0010
599152316628641449856755991859.2015531683129
7 × 790240447
2015-11-0377902404470.0013138.69259.03

4 Composite Factors:
P-1 results:
No P-1 results for M59915231


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-11Will EdgingtonManual testing??
40.396
13
2015-11-03TJAOIManual testing259260*
59.201
18
0.000


ECM factoring results:
No ECM results for M59915231


Lucas-Lehmer results:
No L-L results for M59915231


PRP results:
No PRP results for M59915231


CERT results:
No CERT results for M59915231


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00