Q: Is 550,278 a Prime Number?
A: No, 550,278 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 550278 can be evenly divided by 1 2 3 6 9 18 19 38 57 114 171 342 1,609 3,218 4,827 9,654 14,481 28,962 30,571 61,142 91,713 183,426 275,139 and 550,278, with no remainder.
Since 550,278 cannot be divided by just 1 and 550,278, it is not a prime number.