Q: Is 4,023,421 a Prime Number?
A: No, 4,023,421 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 4023421 can be evenly divided by 1 19 367 577 6,973 10,963 211,759 and 4,023,421, with no remainder.
Since 4,023,421 cannot be divided by just 1 and 4,023,421, it is not a prime number.