Q: Is 420,538 a Prime Number?
A: No, 420,538 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 420538 can be evenly divided by 1 2 283 566 743 1,486 210,269 and 420,538, with no remainder.
Since 420,538 cannot be divided by just 1 and 420,538, it is not a prime number.