Q: Is 266,540 a Prime Number?
A: No, 266,540 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 266540 can be evenly divided by 1 2 4 5 10 20 13,327 26,654 53,308 66,635 133,270 and 266,540, with no remainder.
Since 266,540 cannot be divided by just 1 and 266,540, it is not a prime number.