Q: Is 143,809 a Prime Number?
A: No, 143,809 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 143809 can be evenly divided by 1 31 4,639 and 143,809, with no remainder.
Since 143,809 cannot be divided by just 1 and 143,809, it is not a prime number.