Q: Is 1,231,508 a Prime Number?
A: No, 1,231,508 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 1231508 can be evenly divided by 1 2 4 37 53 74 106 148 157 212 314 628 1,961 3,922 5,809 7,844 8,321 11,618 16,642 23,236 33,284 307,877 615,754 and 1,231,508, with no remainder.
Since 1,231,508 cannot be divided by just 1 and 1,231,508, it is not a prime number.