Q: Is 209,925 a Prime Number?
A: No, 209,925 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 209925 can be evenly divided by 1 3 5 9 15 25 27 45 75 135 225 311 675 933 1,555 2,799 4,665 7,775 8,397 13,995 23,325 41,985 69,975 and 209,925, with no remainder.
Since 209,925 cannot be divided by just 1 and 209,925, it is not a prime number.