Q: Is 31,438 a Prime Number?
A: No, 31,438 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 31438 can be evenly divided by 1 2 11 22 1,429 2,858 15,719 and 31,438, with no remainder.
Since 31,438 cannot be divided by just 1 and 31,438, it is not a prime number.