Q: Is 646,997 a Prime Number?
A: No, 646,997 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 646997 can be evenly divided by 1 13 157 317 2,041 4,121 49,769 and 646,997, with no remainder.
Since 646,997 cannot be divided by just 1 and 646,997, it is not a prime number.