Q: Is 4,021,743 a Prime Number?
A: No, 4,021,743 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 4021743 can be evenly divided by 1 3 11 33 47 141 517 1,551 2,593 7,779 28,523 85,569 121,871 365,613 1,340,581 and 4,021,743, with no remainder.
Since 4,021,743 cannot be divided by just 1 and 4,021,743, it is not a prime number.