Q: Is 726,421 a Prime Number?
A: No, 726,421 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 726421 can be evenly divided by 1 29 37 677 1,073 19,633 25,049 and 726,421, with no remainder.
Since 726,421 cannot be divided by just 1 and 726,421, it is not a prime number.