Q: Is 123,431 a Prime Number?
A: No, 123,431 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 123431 can be evenly divided by 1 7 11 49 77 229 539 1,603 2,519 11,221 17,633 and 123,431, with no remainder.
Since 123,431 cannot be divided by just 1 and 123,431, it is not a prime number.