Q: Is 991,217 a Prime Number?
A: Yes, 991,217 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 991217 can be evenly divided by 1 and 991,217, with no remainder.
Since 991,217 can be divided by just 1 and 991,217, it is a prime number.