Q: Is 1,231,407 a Prime Number?
A: No, 1,231,407 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 1231407 can be evenly divided by 1 3 9 61 183 549 2,243 6,729 20,187 136,823 410,469 and 1,231,407, with no remainder.
Since 1,231,407 cannot be divided by just 1 and 1,231,407, it is not a prime number.