Q: Is 5,438,021 a Prime Number?
A: No, 5,438,021 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 5438021 can be evenly divided by 1 167 32,563 and 5,438,021, with no remainder.
Since 5,438,021 cannot be divided by just 1 and 5,438,021, it is not a prime number.