Q: Is 266,426 a Prime Number?
A: No, 266,426 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 266426 can be evenly divided by 1 2 133,213 and 266,426, with no remainder.
Since 266,426 cannot be divided by just 1 and 266,426, it is not a prime number.