Q: Is 31,904 a Prime Number?
A: No, 31,904 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 31904 can be evenly divided by 1 2 4 8 16 32 997 1,994 3,988 7,976 15,952 and 31,904, with no remainder.
Since 31,904 cannot be divided by just 1 and 31,904, it is not a prime number.