10 to the power 8 divided by 10 to the power of 6 is 10 to the power of (8 - 2) which is 10 to the power of 2 or 100
10 to the 8th power divided by 10 to the 7th power is 10
10 to the power 3+4 ie 10 to the 7th power.
10 to the fourth power.
Some prefixes, which you use with any unit, are:Tera (10 to the power 12)Giga (10 to the power 9)Mega (10 to the power 6)Kilo (10 to the power 3)Hekto (10 to the power 2)Deka (10 to the power 1)Deci (10 to the power -1)Centi (10 to the power -2)Milli (10 to the power -3)Micro (10 to the power -6)Nano (10 to the power -9)Pico (10 to the power -12)You can find a more complete list at the Wikipedia, in the article "SI prefixes".
.000001
10 the the negative 6 power= 0.000001
1x10^-6 = .000001 4.5x10^-6 = .0000045
The place value of .000001 is one millionth
one millionth
100,000 or .000001 or 10-1,000 or 2-99,999
There should be a decimal point in there somewhere; I guess it is after the first zero: 0.00001 = 10-5
.000001
.000001 millimeters or 10^-6 millimeters
Micro
1 millionths
If the last number in the question is 0.000001, then yes, the conversion factor is 0.000001 or 10-6