Q: Is 9,945 a Prime Number?
A: No, 9,945 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 9945 can be evenly divided by 1 3 5 9 13 15 17 39 45 51 65 85 117 153 195 221 255 585 663 765 1,105 1,989 3,315 and 9,945, with no remainder.
Since 9,945 cannot be divided by just 1 and 9,945, it is not a prime number.