Q: Is 247,809 a Prime Number?
A: No, 247,809 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 247809 can be evenly divided by 1 3 17 43 51 113 129 339 731 1,921 2,193 4,859 5,763 14,577 82,603 and 247,809, with no remainder.
Since 247,809 cannot be divided by just 1 and 247,809, it is not a prime number.