Q: Is 8,991 a Prime Number?
A: No, 8,991 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 8991 can be evenly divided by 1 3 9 27 37 81 111 243 333 999 2,997 and 8,991, with no remainder.
Since 8,991 cannot be divided by just 1 and 8,991, it is not a prime number.