Q: Is 5,642,221 a Prime Number?
A: No, 5,642,221 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 5642221 can be evenly divided by 1 13 19 53 247 431 689 1,007 5,603 8,189 13,091 22,843 106,457 296,959 434,017 and 5,642,221, with no remainder.
Since 5,642,221 cannot be divided by just 1 and 5,642,221, it is not a prime number.