is 2 102632779 - 1
has 30895546 decimal digits
takes 408.642 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
Actual276149.114164.4737 %7400007400004.27231.5162 %153.386365.0123 %
Target276149.114164.4737 %65000011000000038.14833.8526 %187.262465.8424 %
Difference---+90000-109260000-33.8760-2.3364 %-33.8760-0.8300 %

Known prime factors (1 factor, 90.9 bits, 0.00008862% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10263277923889545262117301100156894092890.94811638360324491116576
25 × 37 × 233 × 457 × 1283 × 3923 × 18341
2021-02-193923183413,773,6060.02720.0461

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-02-19FilenSirrah474000074000012890.9484.4011.516%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-05-241997rj7Manual testing2632640.019
2010-08-19Torchwood InstitutePH95002642650.036
2012-04-24tscc022652660.073
2013-12-18Houd Al-Obaidlihpi72662670.146
2014-04-30PhilManual testing2672729.029
2020-03-08el groccoManual testing2722739.320
2020-03-30SRBaseManual testing27327418.64
2020-11-09ktonyGPU72_TF27427537.28
2020-11-11Mark RoseManual testing27527674.56


ECM factoring results:
No ECM results for M102632779


Lucas-Lehmer results:
No L-L results for M102632779


PRP results:
No PRP results for M102632779


CERT results:
No CERT results for M102632779


P-1 factor-bounds graph:
B1 = 740000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00