Q: Is 43,665 a Prime Number?
A: No, 43,665 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 43665 can be evenly divided by 1 3 5 15 41 71 123 205 213 355 615 1,065 2,911 8,733 14,555 and 43,665, with no remainder.
Since 43,665 cannot be divided by just 1 and 43,665, it is not a prime number.