Q: Is 550,665 a Prime Number?
A: No, 550,665 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 550665 can be evenly divided by 1 3 5 9 15 27 45 135 4,079 12,237 20,395 36,711 61,185 110,133 183,555 and 550,665, with no remainder.
Since 550,665 cannot be divided by just 1 and 550,665, it is not a prime number.