is 2 8436599 - 1
has 2539670 decimal digits
takes 2.203 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
Actual2673.522064.1791 %200000020008088100413.438416.2962 %416.960470.0166 %
Target2687.065064.7059 %5000055000000.13142.1896 %7.196465.4787 %
Difference-1-3.5430-0.5268 %+1950000+20002588100+413.3070+14.1066%+409.7640+4.5379 %

Known prime factors (3 factors, 86.4 bits, 0.00102439% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
843659967492793826.0084
22
-441.061e-121.514e-63.082e-6
8436599421829951928.65225
52
2008-09-0825254.262e-129.465e-61.926e-5
843659936446107691031.763216
23 × 33
2008-09-0827273.550e-111.022e-52.080e-5

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2024-03-24Stef42Manual testing200000020008088100
skipped known factor: 67492793
skipped known factor: 421829951
skipped known factor: 3644610769
--396.415.274%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
28.652
9
2008-09-08Will EdgingtonManual testing??
31.763
10


ECM factoring results:
No ECM results for M8436599


Lucas-Lehmer results:
No L-L results for M8436599


PRP results:
dateuseridcompidcofactorsres64
2018-10-26rucio
67492793
421829951
3644610769
E180A55710B24CAB
2020-05-30arnaudstm-11-010
67492793
421829951
3644610769
E180A55710B24CAB


CERT results:
No CERT results for M8436599


P-1 factor-bounds graph:
B1 = 2000000, B2 = 20008088100 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
this exponent TF target: 68
TF double-checked to: 67
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Last modified: 2024-03-24T13:51:24+00:00