Q: Is 101,643 a Prime Number?
A: No, 101,643 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 101643 can be evenly divided by 1 3 17 51 1,993 5,979 33,881 and 101,643, with no remainder.
Since 101,643 cannot be divided by just 1 and 101,643, it is not a prime number.