Q: Is 31,239 a Prime Number?
A: No, 31,239 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 31239 can be evenly divided by 1 3 9 13 27 39 89 117 267 351 801 1,157 2,403 3,471 10,413 and 31,239, with no remainder.
Since 31,239 cannot be divided by just 1 and 31,239, it is not a prime number.