Q: Is 725,628 a Prime Number?
A: No, 725,628 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 725628 can be evenly divided by 1 2 3 4 6 12 17 34 51 68 102 204 3,557 7,114 10,671 14,228 21,342 42,684 60,469 120,938 181,407 241,876 362,814 and 725,628, with no remainder.
Since 725,628 cannot be divided by just 1 and 725,628, it is not a prime number.