Q: Is 638,567 a Prime Number?
A: Yes, 638,567 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 638567 can be evenly divided by 1 and 638,567, with no remainder.
Since 638,567 can be divided by just 1 and 638,567, it is a prime number.