is 2 60009907 - 1
has 18064783 decimal digits
takes 133.314 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
Actual2691.989562.3188 %----1.989562.3188 %
Target27331.875564.3836 %4000007000000013.50334.1531 %45.378865.8627 %
Difference-4-29.8860-2.0647 %-400000-70000000-13.5033-4.1531 %-43.3894-3.5439 %

Known prime factors (1 factor, 71.7 bits, 0.00011952% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6000990738970359214284748812712271.72332469938017305
3 × 5 × 23 × 9049 × 10400681
2011-08-1690491040068115.7031.85293.4092

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-08-16Nathan EdingtonMCH102271.7235.2340.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-12-23ANONYMOUSv4_computers212532.00000e-5
2022-03-29LordJuliusManual testing21263
2008-11-22Sturle Sundedittersdorf.ifi2632650.094
2008-11-23Sturle Sundedittersdorf.ifi2652660.125
2009-01-18David Langervistadesktop2662670.249
2009-01-19David Langervistadesktop2672680.498
2009-06-19Sturle Sundepofu.ifi2682690.996


ECM factoring results:
No ECM results for M60009907


Lucas-Lehmer results:
No L-L results for M60009907


PRP results:
No PRP results for M60009907


CERT results:
No CERT results for M60009907


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
108
TF factor-bounds graph:
269
268
267
266
265
263
253
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