Q: Is 139,478 a Prime Number?
A: No, 139,478 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 139478 can be evenly divided by 1 2 69,739 and 139,478, with no remainder.
Since 139,478 cannot be divided by just 1 and 139,478, it is not a prime number.