Q: Is 423,665 a Prime Number?
A: No, 423,665 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 423665 can be evenly divided by 1 5 11 55 7,703 38,515 84,733 and 423,665, with no remainder.
Since 423,665 cannot be divided by just 1 and 423,665, it is not a prime number.