is 2 79543979 - 1
has 23945124 decimal digits
takes 248.216 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
Actual27596.197264.0000 %----96.197264.0000 %
Target27596.197264.0000 %5000008500000023.09323.7801 %119.290465.3608 %
Difference----500000-85000000-23.0932-3.7801 %-23.0932-1.3608 %

Known prime factors (1 factor, 87.3 bits, 0.00010979% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
795439791947089126370009770718945912787.3311223907296848960605
3 × 5 × 7 × 1549 × 2099 × 6983 × 513397
2016-03-236983513397725,3790.15640.2364

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-03-23Kevin JagetPokey2787.3313.1450.000%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-05-29Architects Cubedm1_122632640.025
2010-11-29Architects Cubedm1_782642650.047
2010-12-12Craig MeyersManual testing2652660.094
2011-02-18ANONYMOUS2222662670.188
2011-02-23BisisVIA_C7-D_1_8GHz2672680.376
2011-02-28steinrarManual testing2682715.261
2016-03-12apocalypseManual testing27127590.19


ECM factoring results:
No ECM results for M79543979


Lucas-Lehmer results:
No L-L results for M79543979


PRP results:
No PRP results for M79543979


CERT results:
No CERT results for M79543979


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
275
271
268
267
266
265
264
this exponent TF target: 75
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00