is 2 140000659 - 1
has 42144398 decimal digits
takes 779.726 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
Actual27427.327562.1622 %14300004397250030.26645.9319 %57.593864.4067 %
Target277218.628763.6364 %90000016000000077.26994.0681 %295.898665.1157 %
Difference-3-191.3012-1.4742 %+530000-116027500-47.0036+1.8638%-238.3048-0.7090 %

Known prime factors (1 factor, 88.8 bits, 0.00006341% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1400006595317329411321732683829263032788.7811899037279289425589
379 × 1483 × 1226299 × 2755223
2019-06-0712262992755223447,75410.57620.155

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-06-07timbitManual testing143000043972500622788.78131.704.550%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-12-08sasaki3MATE_J2642650.027
2012-11-26Andrew Bdell_xps_172652660.053
2014-06-27Andreas_TruetschManual testing2662670.107
2015-05-04Judge HaleManual testing2672680.214
2015-05-04Judge HaleManual testing2682690.427
2015-05-04Judge HaleManual testing2692700.854
2016-08-22AnrodionManual testing2702711.708
2017-08-04Ilya AlexandrovManual testing2712723.416
2018-12-15mikrManual testing2722736.832
2018-12-15mikrManual testing27327413.66


ECM factoring results:
No ECM results for M140000659


Lucas-Lehmer results:
No L-L results for M140000659


PRP results:
No PRP results for M140000659


CERT results:
No CERT results for M140000659


P-1 factor-bounds graph:
B1 = 1430000, B2 = 43972500 (P-1 stage 2)
B1 = 1430000 (P-1 stage 1)
105
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107
105
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108
TF factor-bounds graph:
274
273
272
271
270
269
268
267
266
265
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00