Q: Is 2,220,421 a Prime Number?
A: No, 2,220,421 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 2220421 can be evenly divided by 1 7 17 47 119 329 397 799 2,779 5,593 6,749 18,659 47,243 130,613 317,203 and 2,220,421, with no remainder.
Since 2,220,421 cannot be divided by just 1 and 2,220,421, it is not a prime number.