Q: Is 31,608 a Prime Number?
A: No, 31,608 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 31608 can be evenly divided by 1 2 3 4 6 8 9 12 18 24 36 72 439 878 1,317 1,756 2,634 3,512 3,951 5,268 7,902 10,536 15,804 and 31,608, with no remainder.
Since 31,608 cannot be divided by just 1 and 31,608, it is not a prime number.