Q: Is 724,421 a Prime Number?
A: No, 724,421 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 724421 can be evenly divided by 1 17 43 731 991 16,847 42,613 and 724,421, with no remainder.
Since 724,421 cannot be divided by just 1 and 724,421, it is not a prime number.