Q: Is 331,989 a Prime Number?
A: No, 331,989 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 331989 can be evenly divided by 1 3 7 21 15,809 47,427 110,663 and 331,989, with no remainder.
Since 331,989 cannot be divided by just 1 and 331,989, it is not a prime number.