Q: Is 1,403,221 a Prime Number?
A: No, 1,403,221 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 1403221 can be evenly divided by 1 787 1,783 and 1,403,221, with no remainder.
Since 1,403,221 cannot be divided by just 1 and 1,403,221, it is not a prime number.