Q: Is 655,518 a Prime Number?
A: No, 655,518 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 655518 can be evenly divided by 1 2 3 6 109,253 218,506 327,759 and 655,518, with no remainder.
Since 655,518 cannot be divided by just 1 and 655,518, it is not a prime number.