Q: Is 209,745 a Prime Number?
A: No, 209,745 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 209745 can be evenly divided by 1 3 5 9 15 45 59 79 177 237 295 395 531 711 885 1,185 2,655 3,555 4,661 13,983 23,305 41,949 69,915 and 209,745, with no remainder.
Since 209,745 cannot be divided by just 1 and 209,745, it is not a prime number.