Q: Is 139,491 a Prime Number?
A: No, 139,491 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 139491 can be evenly divided by 1 3 9 11 33 99 1,409 4,227 12,681 15,499 46,497 and 139,491, with no remainder.
Since 139,491 cannot be divided by just 1 and 139,491, it is not a prime number.