Q: Is 163,989 a Prime Number?
A: No, 163,989 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 163989 can be evenly divided by 1 3 7 9 19 21 57 63 133 137 171 399 411 959 1,197 1,233 2,603 2,877 7,809 8,631 18,221 23,427 54,663 and 163,989, with no remainder.
Since 163,989 cannot be divided by just 1 and 163,989, it is not a prime number.