is 2 78835051 - 1
has 23731716 decimal digits
takes 246.004 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
Actual27597.062364.0000 %6900006900003.12201.5868 %100.184364.5712 %
Target27597.062364.0000 %5000008500000023.09323.7759 %120.155465.3593 %
Difference---+190000-84310000-19.9711-2.1891 %-19.9711-0.7881 %

Known prime factors (1 factor, 109.8 bits, 0.00013925% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
78835051111031113916580801975573395225540934109.7757041989096739520215162504
23 × 3 × 277 × 78853 × 213881 × 220373 × 285007
2016-07-032203732850071.876e+91.01312.0293

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-07-03TheJudgerManual testing690000690000134109.7753.6241.587%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-06-23Jossv4_computers212570.000
2008-02-031997rj7v4_computers212630.012
2008-05-211997rj7v4_computers212640.025
2010-11-09Ethan O'ConnorManual testing2642650.047
2010-11-12Corranrri72652660.095
2011-03-19Åke TilanderPC51-115-162662670.190
2011-03-22Åke TilanderPC51-115-162672680.379
2011-03-24Åke TilanderPC51-115-162682690.758
2011-03-31Åke TilanderPC51-115-162692701.517
2013-04-06Clown_RoyalManual testing2702713.033
2016-02-07Robin89Manual testing2712726.067
2016-06-25AirSquirrelsManual testing27227584.93


ECM factoring results:
No ECM results for M78835051


Lucas-Lehmer results:
No L-L results for M78835051


PRP results:
No PRP results for M78835051


CERT results:
No CERT results for M78835051


P-1 factor-bounds graph:
B1 = 690000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
275
272
271
270
269
268
267
266
265
264
263
257
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00