is 2 10200791 - 1
has 3070745 decimal digits
takes 3.332 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L9260FC3E6D1B68CBdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26911.703765.2174 %11500013512500.08642.4790 %11.790166.0797 %
Target2685.843264.7059 %7000080000000.23782.6551 %6.081065.6430 %
Difference+1+5.8605+0.5115 %+45000-6648750-0.1514-0.1761 %+5.7091+0.4367 %

Known prime factors (1 factor, 66.0 bits, 0.00064701% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10200791737689152069050070712066.0003615842889385
5 × 29 × 41 × 608215793
2015-04-25416082157930.757215.69629.316

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-08-12Ed Norrisv4_computers1150001351250--0.0862.786%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-08-22korvav4_computers212640.192
2011-09-27David CampeauManual testing2642650.366
2015-04-25ThaManual testing265266
66.000
20
0.732
2022-03-22LordJuliusManual testing266267
2022-01-22ViliamFManual testing267269


ECM factoring results:
Total ECM effort:0.514 GHz-days
Estimated T-Level:0.192
DigitsB1CompleteFacMiss
20110000.03896.227%
25500000.00499.645%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.514


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-12-01Ed Norrisv4_computers9260FC3E6D1B68CB3.332
2003-10-31Team Prime Ribv4_computers9260FC3E6D1B68CB3.332
2008-05-21Team Prime Ribv4_computers9260FC3E6D1B68CB3.332


PRP results:
dateuseridcompidcofactorsres64
2020-02-15Luigi Morelli9800X
73768915206905007071
8DFDFFEA633373CC
2021-02-09XZT800G2Mini1
73768915206905007071
8DFDFFEA633373CC


CERT results:
dateuseridcompid
2021-02-09Ben Deloi-0dc7b178ba9fbd207


P-1 factor-bounds graph:
B1 = 115000, B2 = 1351250 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
269
267
266
265
264
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.19 ~= -16-bit
250
260
270
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00