Q: Is 5,559,721 a Prime Number?
A: No, 5,559,721 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 5559721 can be evenly divided by 1 23 241,727 and 5,559,721, with no remainder.
Since 5,559,721 cannot be divided by just 1 and 5,559,721, it is not a prime number.