Q: Is 4,218,225 a Prime Number?
A: No, 4,218,225 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 4218225 can be evenly divided by 1 3 5 11 15 25 33 55 75 165 275 825 5,113 15,339 25,565 56,243 76,695 127,825 168,729 281,215 383,475 843,645 1,406,075 and 4,218,225, with no remainder.
Since 4,218,225 cannot be divided by just 1 and 4,218,225, it is not a prime number.