Q: Is 31,604 a Prime Number?
A: No, 31,604 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 31604 can be evenly divided by 1 2 4 7,901 15,802 and 31,604, with no remainder.
Since 31,604 cannot be divided by just 1 and 31,604, it is not a prime number.