Q: Is 135,555 a Prime Number?
A: No, 135,555 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 135555 can be evenly divided by 1 3 5 7 15 21 35 105 1,291 3,873 6,455 9,037 19,365 27,111 45,185 and 135,555, with no remainder.
Since 135,555 cannot be divided by just 1 and 135,555, it is not a prime number.