is 2 26462533 - 1
has 7966017 decimal digits
takes 24.496 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
Actual2671.122962.6866 %----1.122962.6866 %
Target2709.029864.2857 %190000275000002.25223.7929 %11.282065.6403 %
Difference-3-7.9069-1.5991 %-190000-27500000-2.2522-3.7929 %-10.1591-2.9538 %

Known prime factors (2 factors, 169.6 bits, 0.00064108% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
264625332735542426572694165224972477.8565168708578601856
27 × 34 × 192 × 881 × 1567487
2005-11-0188115674871,691.40.11570.2141
2646253342781001841888230258275750812891.78980833157282955925380
22 × 3 × 5 × 13 × 29 × 193 × 809 × 44939 × 509293
2005-11-014493950929324,611,4730.09430.1228

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2005-11-01ANONYMOUSv4_computers52169.645-0.000%
2008-07-15George WoltmanManual testing52169.6451.2330.000%


Trial Factoring results:
5758596061626364656667686970
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-06-04markrv4_computers212620.012
2004-09-14Douglas Featherv4_computers212670.565


ECM factoring results:
No ECM results for M26462533


Lucas-Lehmer results:
No L-L results for M26462533


PRP results:
No PRP results for M26462533


CERT results:
No CERT results for M26462533


P-1 factor-bounds graph:
101
102
103
104
105
101
102
103
104
105
106
107
TF factor-bounds graph:
267
262
this exponent TF target: 70
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00