is 2 333015833 - 1
has 100247755 decimal digits
takes 4,953.611 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
Actual278183.824662.8205 %252100094665000162.65555.5437 %346.480264.8816 %
Target2811,470.600664.1975 %1900000400000000508.79794.0328 %1,979.398565.6414 %
Difference-3-1,286.7760-1.3770 %+621000-305335000-346.1424+1.5109%-1,632.9184-0.7597 %

Known prime factors (1 factor, 109.7 bits, 0.00003294% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
333015833103950801197534884988400941246059334109.6801560748632596319902129112
23 × 3 × 23 × 29 × 672 × 73 × 367 × 5801 × 139750861
2021-02-185801139750861385,509,273164.34306.73

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-02-18Simon Josefssongran25210009466500012234109.680162.74.290%


Trial Factoring results:
57585960616263646566676869707172737475767778798081
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-09-08Architects Cubedm1_sa2642650.011
2010-11-02Architects Cubedm1_292652660.022
2011-11-29laleraManual testing2662670.045
2011-11-29laleraManual testing2672680.090
2011-12-10laleraManual testing2682690.180
2011-12-10laleraManual testing2692700.359
2011-12-10laleraManual testing2702710.718
2013-01-14LaurVManual testing2712721.436
2013-09-19Preben SManual testing2722732.872
2013-09-21Preben SManual testing2732745.745
2013-09-27Preben SManual testing27427511.49
2013-11-13shengManual testing27527622.98
2020-05-19KrieselManual testing27627745.96
2020-05-19KrieselManual testing27727891.91


ECM factoring results:
No ECM results for M333015833


Lucas-Lehmer results:
No L-L results for M333015833


PRP results:
No PRP results for M333015833


CERT results:
No CERT results for M333015833


P-1 factor-bounds graph:
B1 = 2521000, B2 = 94665000 (P-1 stage 2)
B1 = 2521000 (P-1 stage 1)
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109
TF factor-bounds graph:
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this exponent TF target: 81
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00