Q: Is 138,555 a Prime Number?
A: No, 138,555 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 138555 can be evenly divided by 1 3 5 9 15 45 3,079 9,237 15,395 27,711 46,185 and 138,555, with no remainder.
Since 138,555 cannot be divided by just 1 and 138,555, it is not a prime number.