Q: Is 133,563 a Prime Number?
A: No, 133,563 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 133563 can be evenly divided by 1 3 211 633 44,521 and 133,563, with no remainder.
Since 133,563 cannot be divided by just 1 and 133,563, it is not a prime number.