Q: Is 978,631 a Prime Number?
A: No, 978,631 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 978631 can be evenly divided by 1 151 6,481 and 978,631, with no remainder.
Since 978,631 cannot be divided by just 1 and 978,631, it is not a prime number.