is 2 41690471 - 1
has 12550083 decimal digits
takes 61.450 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L1C34D67AD1A8DD3Adouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2681.429761.7647 %----1.429761.7647 %
Target27222.938963.8889 %280000450000005.80573.8262 %28.744665.2706 %
Difference-4-21.5092-2.1242 %-280000-45000000-5.8057-3.8262 %-27.3149-3.5059 %

Known prime factors (1 factor, 78.2 bits, 0.00018764% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
416904713542557933073157920236572478.2294248642253373868
22 × 3 × 72 × 17 × 19 × 5333 × 4194679
2011-08-19533341946791,922.20.49920.9123

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-08-19kurlyhex2478.2291.2140.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2007-04-23Andi47v4_computers212680.717


ECM factoring results:
No ECM results for M41690471


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2010-02-17lindedLKAH6301C34D67AD1A8DD3A72.38


PRP results:
No PRP results for M41690471


CERT results:
No CERT results for M41690471


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
268
this exponent TF target: 72
TF double-checked to: 67
250
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280
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Last modified: 2024-03-13T02:15:48+00:00