Q: Is 378 a Prime Number?
A: No, 378 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 378 can be evenly divided by 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 and 378, with no remainder.
Since 378 cannot be divided by just 1 and 378, it is not a prime number.