Q: Is 1,491,221 a Prime Number?
A: No, 1,491,221 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 1491221 can be evenly divided by 1 419 3,559 and 1,491,221, with no remainder.
Since 1,491,221 cannot be divided by just 1 and 1,491,221, it is not a prime number.