Q: Is 318,225 a Prime Number?
A: No, 318,225 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 318225 can be evenly divided by 1 3 5 15 25 75 4,243 12,729 21,215 63,645 106,075 and 318,225, with no remainder.
Since 318,225 cannot be divided by just 1 and 318,225, it is not a prime number.