Q: Is 721,492 a Prime Number?
A: No, 721,492 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 721492 can be evenly divided by 1 2 4 317 569 634 1,138 1,268 2,276 180,373 360,746 and 721,492, with no remainder.
Since 721,492 cannot be divided by just 1 and 721,492, it is not a prime number.