Q: Is 63,978 a Prime Number?
A: No, 63,978 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 63978 can be evenly divided by 1 2 3 6 10,663 21,326 31,989 and 63,978, with no remainder.
Since 63,978 cannot be divided by just 1 and 63,978, it is not a prime number.