Q: Is 139,408 a Prime Number?
A: No, 139,408 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 139408 can be evenly divided by 1 2 4 8 16 8,713 17,426 34,852 69,704 and 139,408, with no remainder.
Since 139,408 cannot be divided by just 1 and 139,408, it is not a prime number.