Q: Is 387 a Prime Number?
A: No, 387 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 387 can be evenly divided by 1 3 9 43 129 and 387, with no remainder.
Since 387 cannot be divided by just 1 and 387, it is not a prime number.