Q: Is 15,987 a Prime Number?
A: No, 15,987 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 15987 can be evenly divided by 1 3 73 219 5,329 and 15,987, with no remainder.
Since 15,987 cannot be divided by just 1 and 15,987, it is not a prime number.