Q: Is 420,507 a Prime Number?
A: No, 420,507 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 420507 can be evenly divided by 1 3 9 46,723 140,169 and 420,507, with no remainder.
Since 420,507 cannot be divided by just 1 and 420,507, it is not a prime number.