Q: Is 31,478 a Prime Number?
A: No, 31,478 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 31478 can be evenly divided by 1 2 15,739 and 31,478, with no remainder.
Since 31,478 cannot be divided by just 1 and 31,478, it is not a prime number.