is 2 14207059 - 1
has 4276751 decimal digits
takes 6.804 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L93D1E9B34FB0DDE7double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual273134.640467.1233 %76600032588829012.83206.3413 %147.472469.2081 %
Target2698.403365.2174 %100000120000000.51962.9168 %8.923066.2319 %
Difference+4+126.2371+1.9059 %+666000+313888290+12.3124+3.4245%+138.5494+2.9762 %

Known prime factors (1 factor, 102.0 bits, 0.00071806% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
14207059512226815777500848492217414990331102.015180271939385027136331389
3 × 19 × 89 × 743 × 18131 × 108553 × 24300257
2022-03-31108553243002571.063e+100.99061.7171

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-02MadPoov4_computers130000617500--0.1092.131%
2017-08-20ThaManual testing30000060000006--0.4244.207%
2022-03-31DRobinsonPEDRobinson766000325888290231102.01514.658.939%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-08-17Net_Forcev4_computers212560.001
2000-12-31ANONYMOUSv4_computers212650.263
2014-08-01NesowaManual testing2652660.526
2015-08-28ThaManual testing2662671.052
2018-02-12ramgeisManual testing2672696.312
2021-08-08SRBaseManual testing2692708.416
2021-09-01SRBaseManual testing27027116.83
2021-10-15ANONYMOUSManual testing27127233.66
2022-03-31nullcureManual testing27227367.33


ECM factoring results:
Total ECM effort:0.728 GHz-days
Estimated T-Level:0.192
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.728


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-01-15MadPoov4_computers93D1E9B34FB0DDE76.804
2005-07-01ANONYMOUSv4_computers93D1E9B34FB0DDE76.804


PRP results:
dateuseridcompidcofactorsres64
2022-08-28Naegi Makoto1700
5122268157775008484922174149903
00824C1EBACCFF77


CERT results:
dateuseridcompid
2022-08-29curtiscwcm220a-13l


P-1 factor-bounds graph:
B1 = 766000, B2 = 325888290 (P-1 stage 2)
B1 = 766000 (P-1 stage 1)
B1 = 300000, B2 = 6000000 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
B1 = 130000, B2 = 617500 (P-1 stage 2)
B1 = 130000 (P-1 stage 1)
104
105
106
104
105
106
107
108
109
TF factor-bounds graph:
273
272
271
270
269
267
266
265
256
this exponent TF target: 69
TF double-checked to: 67
ECM T-Level=0.19 ~= -16-bit
250
260
270
280
290
2100
2110
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Last modified: 2024-03-13T02:15:48+00:00