Q: Is 19,965 a Prime Number?
A: No, 19,965 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 19965 can be evenly divided by 1 3 5 11 15 33 55 121 165 363 605 1,331 1,815 3,993 6,655 and 19,965, with no remainder.
Since 19,965 cannot be divided by just 1 and 19,965, it is not a prime number.