Q: Is 396,428 a Prime Number?
A: No, 396,428 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 396428 can be evenly divided by 1 2 4 23 31 46 62 92 124 139 278 556 713 1,426 2,852 3,197 4,309 6,394 8,618 12,788 17,236 99,107 198,214 and 396,428, with no remainder.
Since 396,428 cannot be divided by just 1 and 396,428, it is not a prime number.