Q: Is 421,464 a Prime Number?
A: No, 421,464 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 421464 can be evenly divided by 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 1,033 2,066 3,099 4,132 6,198 8,264 12,396 17,561 24,792 35,122 52,683 70,244 105,366 140,488 210,732 and 421,464, with no remainder.
Since 421,464 cannot be divided by just 1 and 421,464, it is not a prime number.