is 2 60558317 - 1
has 18229870 decimal digits
takes 134.532 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
Actual2670.490761.1940 %----0.490761.1940 %
Target27331.586864.3836 %4000007000000013.50334.1578 %45.090165.8644 %
Difference-6-31.0961-3.1895 %-400000-70000000-13.5033-4.1578 %-44.5995-4.6704 %

Known prime factors (1 factor, 69.2 bits, 0.00011426% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
605583176751129858897852135432169.1945574073218463
61 × 91378249483
2009-01-2961913782494833.246216,03729,953

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-01-29Geoff Wingv4_computers2169.1944.6280.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-03-02Geoff Wingv4_computers??
69.194
21
2003-06-01Gordon Spencev4_computers212590.001
2003-08-25Gordon Spencev4_computers212600.001
2022-03-29LordJuliusManual testing260263
2009-01-23driveByUpgradesDBUcusttest12632640.032
2009-01-24S36049Wolle32642650.062


ECM factoring results:
No ECM results for M60558317


Lucas-Lehmer results:
No L-L results for M60558317


PRP results:
No PRP results for M60558317


CERT results:
No CERT results for M60558317


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
265
264
263
260
259
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