Q: Is 266,608 a Prime Number?
A: No, 266,608 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 266608 can be evenly divided by 1 2 4 8 16 19 38 76 152 304 877 1,754 3,508 7,016 14,032 16,663 33,326 66,652 133,304 and 266,608, with no remainder.
Since 266,608 cannot be divided by just 1 and 266,608, it is not a prime number.