Q: Is 4,721,318 a Prime Number?
A: No, 4,721,318 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 4721318 can be evenly divided by 1 2 7 14 563 599 1,126 1,198 3,941 4,193 7,882 8,386 337,237 674,474 2,360,659 and 4,721,318, with no remainder.
Since 4,721,318 cannot be divided by just 1 and 4,721,318, it is not a prime number.