Q: Is 57 a Prime Number?
A: No, 57 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 57 can be evenly divided by 1 3 19 and 57, with no remainder.
Since 57 cannot be divided by just 1 and 57, it is not a prime number.