Q: Is 1,224,221 a Prime Number?
A: No, 1,224,221 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 1224221 can be evenly divided by 1 17 23 31 101 391 527 713 1,717 2,323 3,131 12,121 39,491 53,227 72,013 and 1,224,221, with no remainder.
Since 1,224,221 cannot be divided by just 1 and 1,224,221, it is not a prime number.