Q: Is 266 a Prime Number?
A: No, 266 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 266 can be evenly divided by 1 2 7 14 19 38 133 and 266, with no remainder.
Since 266 cannot be divided by just 1 and 266, it is not a prime number.