Q: Is 100,645 a Prime Number?
A: No, 100,645 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 100645 can be evenly divided by 1 5 20,129 and 100,645, with no remainder.
Since 100,645 cannot be divided by just 1 and 100,645, it is not a prime number.