Q: Is 418,421 a Prime Number?
A: No, 418,421 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 418421 can be evenly divided by 1 17 151 163 2,567 2,771 24,613 and 418,421, with no remainder.
Since 418,421 cannot be divided by just 1 and 418,421, it is not a prime number.