Q: Is 1,125,555 a Prime Number?
A: No, 1,125,555 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 1125555 can be evenly divided by 1 3 5 15 75,037 225,111 375,185 and 1,125,555, with no remainder.
Since 1,125,555 cannot be divided by just 1 and 1,125,555, it is not a prime number.