Q: Is 163,421 a Prime Number?
A: No, 163,421 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 163421 can be evenly divided by 1 17 9,613 and 163,421, with no remainder.
Since 163,421 cannot be divided by just 1 and 163,421, it is not a prime number.