Q: Is 654 a Prime Number?
A: No, 654 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 654 can be evenly divided by 1 2 3 6 109 218 327 and 654, with no remainder.
Since 654 cannot be divided by just 1 and 654, it is not a prime number.