is 2 66109319 - 1
has 19900889 decimal digits
takes 167.110 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
Actual27457.871864.8649 %----57.871864.8649 %
Target27457.871864.8649 %4500007500000016.53663.9218 %74.408466.2428 %
Difference----450000-75000000-16.5366-3.9218 %-16.5366-1.3779 %

Known prime factors (1 factor, 74.1 bits, 0.00011206% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
66109319199830761440784741763292374.081151136605597756
22 × 41 × 181211 × 5085589
2014-07-30181211508558968.5951.64361.8968

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2014-07-30driveByUpgradesBuild_42374.0814.2760.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-02-14Team Prime Ribv4_computers212600.001
2009-06-201997rj7Manual testing212640.030
2009-11-13ANONYMOUS2642650.057
2009-11-14GrunwalderGIMPcompute-0-42652660.113
2009-11-27benkazbenkaz2662670.226
2009-11-27ANONYMOUS2672691.356
2012-01-31JMGarciasede_vacante2692701.809
2013-04-23SMoffatManual testing2702713.617
2014-03-03krackerManual testing2712727.234
2014-03-15ChuckManual testing27227314.47
2014-05-23RichD0Manual testing27327428.94


ECM factoring results:
No ECM results for M66109319


Lucas-Lehmer results:
No L-L results for M66109319


PRP results:
No PRP results for M66109319


CERT results:
No CERT results for M66109319


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
274
273
272
271
270
269
267
266
265
264
260
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00