is 2 20594023 - 1
has 6199419 decimal digits
takes 14.595 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L2B94575523D6DDFDdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2671.442862.6866 %23500049350000.50465.0415 %1.947564.5677 %
Target2695.797263.7681 %150000225000001.40543.7738 %7.202665.1354 %
Difference-2-4.3543-1.0815 %+85000-17565000-0.9008+1.2677%-5.2551-0.5677 %

Known prime factors (1 factor, 68.0 bits, 0.00033026% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
205940232979751023143428886412168.0147234504455840
25 × 3 × 5 × 47 × 593 × 540773
2017-04-105935407733.98760.03090.0565

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-09-21ANONYMOUSv4_computers310000310000--0.3191.848%
2017-04-10James Heinrichi7-9202350004935000622168.0140.5054.107%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-01-12ANONYMOUSv4_computers2312522.91000e-5
2000-11-05Jossv4_computers212540.000
2001-04-15ANONYMOUSv4_computers212560.000
2002-11-24Team Prime Ribv4_computers212660.363
2015-03-03NRManual testing2662670.726


ECM factoring results:
No ECM results for M20594023


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-11-28ANONYMOUSv4_computers2B94575523D6DDFD14.59
2008-07-12Daniel A. Nortonv4_computers2B94575523D6DDFD14.59


PRP results:
No PRP results for M20594023


CERT results:
No CERT results for M20594023


P-1 factor-bounds graph:
B1 = 235000, B2 = 4935000 (P-1 stage 2)
B1 = 310000 (P-1 stage 1)
B1 = 235000 (P-1 stage 1)
101
102
103
104
105
106
101
102
103
104
105
106
107
TF factor-bounds graph:
267
266
256
254
252
this exponent TF target: 69
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00