Q: Is 41,643 a Prime Number?
A: No, 41,643 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 41643 can be evenly divided by 1 3 7 9 21 63 661 1,983 4,627 5,949 13,881 and 41,643, with no remainder.
Since 41,643 cannot be divided by just 1 and 41,643, it is not a prime number.