is 2 79773019 - 1
has 24014072 decimal digits
takes 248.931 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
Actual27595.921064.0000 %6650006650003.00891.5642 %98.929964.5631 %
Target27595.921064.0000 %5000008500000023.09323.7814 %119.014265.3613 %
Difference---+165000-84335000-20.0842-2.2172 %-20.0842-0.7982 %

Known prime factors (1 factor, 75.8 bits, 0.00009505% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
79773019667204676637964607658792375.821418189436103681
32 × 11 × 181 × 251 × 2477 × 37537
2016-12-15247737537176.090.01990.0228

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-12-15Pi_RhoManual testing66500066500012375.8213.4931.564%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2009-05-29Architects Cubedm1_152632640.025
2010-11-30Architects Cubedm1_542642650.047
2011-02-03Zet_koryellowpon2652660.094
2011-02-05ANONYMOUSTTennis022662670.187
2011-02-06Sara22672680.375
2011-02-13Eric Frankenbergchemking2682690.749
2011-02-19manskyKJM22692701.499
2013-02-06MurrayInfoSysD6ZPW1C12702712.998
2016-03-03DerekManual testing2712725.995
2016-08-24Matthias WurtingerManual testing27227311.99
2016-08-27Chris SmithManual testing27327571.94


ECM factoring results:
No ECM results for M79773019


Lucas-Lehmer results:
No L-L results for M79773019


PRP results:
No PRP results for M79773019


CERT results:
No CERT results for M79773019


P-1 factor-bounds graph:
B1 = 665000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
275
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00