Q: Is 660,646 a Prime Number?
A: No, 660,646 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 660646 can be evenly divided by 1 2 7 14 47,189 94,378 330,323 and 660,646, with no remainder.
Since 660,646 cannot be divided by just 1 and 660,646, it is not a prime number.