Q: Is 991,159 a Prime Number?
A: No, 991,159 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 991159 can be evenly divided by 1 13 76,243 and 991,159, with no remainder.
Since 991,159 cannot be divided by just 1 and 991,159, it is not a prime number.