Q: Is 971,991 a Prime Number?
A: No, 971,991 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 971991 can be evenly divided by 1 3 9 107,999 323,997 and 971,991, with no remainder.
Since 971,991 cannot be divided by just 1 and 971,991, it is not a prime number.