is 2 86603393 - 1
has 26070220 decimal digits
takes 278.935 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
Actual276176.713664.4737 %700000138250006.60873.4758 %183.322365.7085 %
Target27588.355864.0000 %5500009500000026.60103.9532 %114.956865.4232 %
Difference+1+88.3578+0.4737 %+150000-81175000-19.9923-0.4774 %+68.3655+0.2854 %

Known prime factors (1 factor, 92.9 bits, 0.00010729% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
8660339393557800294665483541055890332892.91854015089394168126612
22 × 33 × 23 × 8221 × 585899 × 4514567
2018-05-17585899451456722,590,9263.73595.5688

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-05-17YxinityElena700000138250001222892.9186.6093.830%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-10-24Michael CManual testing2642650.043
2010-11-29Michael CManual testing2652670.259
2011-01-02Michael CManual testing2672680.345
2013-04-05Brian V.Manual testing2682702.071
2013-08-14SRS TechnologyManual testing2702728.284
2017-05-08Judge HaleManual testing27227311.04
2017-05-20ANONYMOUSManual testing27327422.09
2017-12-06Strolling JellyfishManual testing274276132.5


ECM factoring results:
No ECM results for M86603393


Lucas-Lehmer results:
No L-L results for M86603393


PRP results:
No PRP results for M86603393


CERT results:
No CERT results for M86603393


P-1 factor-bounds graph:
B1 = 700000, B2 = 13825000 (P-1 stage 2)
B1 = 700000 (P-1 stage 1)
104
105
106
104
105
106
107
108
TF factor-bounds graph:
276
274
273
272
270
268
267
265
this exponent TF target: 75
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00