Q: Is 2,118,225 a Prime Number?
A: No, 2,118,225 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 2118225 can be evenly divided by 1 3 5 15 25 61 75 183 305 463 915 1,389 1,525 2,315 4,575 6,945 11,575 28,243 34,725 84,729 141,215 423,645 706,075 and 2,118,225, with no remainder.
Since 2,118,225 cannot be divided by just 1 and 2,118,225, it is not a prime number.