Q: Is 15,867 a Prime Number?
A: No, 15,867 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 15867 can be evenly divided by 1 3 9 41 43 123 129 369 387 1,763 5,289 and 15,867, with no remainder.
Since 15,867 cannot be divided by just 1 and 15,867, it is not a prime number.