Q: Is 16,641 a Prime Number?
A: No, 16,641 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 16641 can be evenly divided by 1 3 9 43 129 387 1,849 5,547 and 16,641, with no remainder.
Since 16,641 cannot be divided by just 1 and 16,641, it is not a prime number.