Yes.
Two.
Nope - it can be divided by 3.
It doesn't have two factors.
6 to the 1000th power
No, it is an even number and therefore can be at least divided by 2.
The 1000th digit of pi is...9
The ordinal 1000th is "one thousandth" or simply "thousandth."
3, 5, and 7.
11/12 cannot be simplified - because 11 is a primenumber.
The prefix "milli-" means 1000th. A millimeter is 1000th of a meter.
It's already in its simplest form - 67 is a primenumber.