Q: Is 421,707 a Prime Number?
A: No, 421,707 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 421707 can be evenly divided by 1 3 11 13 33 39 143 429 983 2,949 10,813 12,779 32,439 38,337 140,569 and 421,707, with no remainder.
Since 421,707 cannot be divided by just 1 and 421,707, it is not a prime number.