Q: Is 638,695 a Prime Number?
A: No, 638,695 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 638695 can be evenly divided by 1 5 127,739 and 638,695, with no remainder.
Since 638,695 cannot be divided by just 1 and 638,695, it is not a prime number.