is 2 129999217 - 1
has 39133664 decimal digits
takes 689.718 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
Actual2727.356562.5000 %1340000134000010.30873.0546 %17.665263.6455 %
Target277235.448864.9351 %80000014000000064.49863.8749 %299.947466.2938 %
Difference-5-228.0924-2.4351 %+540000-138660000-54.1899-0.8203 %-282.2823-2.6483 %

Known prime factors (1 factor, 72.3 bits, 0.00005560% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
12999921757086382819513056663112272.27421956433329715
3 × 5 × 67 × 269 × 431 × 188437
2018-05-184311884377.35650.08210.1475

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-05-18timbitManual testing1340000134000012272.27410.311.799%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-05-31Torchwood InstituteHTPC-V642632640.015
2010-11-11Thomas StorkRainbow2642650.029
2012-10-09KYOJI_KAMEI2652660.057
2015-01-16goose2662670.115
2015-09-13el groccoManual testing2672680.230
2015-12-10saffaManual testing2682690.460
2016-03-03ANONYMOUSManual testing2692700.920
2016-03-03ANONYMOUSManual testing2702711.839
2016-03-14jbach67ISO11612712723.679


ECM factoring results:
No ECM results for M129999217


Lucas-Lehmer results:
No L-L results for M129999217


PRP results:
No PRP results for M129999217


CERT results:
No CERT results for M129999217


P-1 factor-bounds graph:
B1 = 1340000 (P-1 stage 1)
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105
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107
101
102
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107
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00