Q: Is 4,423,421 a Prime Number?
A: No, 4,423,421 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 4423421 can be evenly divided by 1 31 293 487 9,083 15,097 142,691 and 4,423,421, with no remainder.
Since 4,423,421 cannot be divided by just 1 and 4,423,421, it is not a prime number.