Q: Is 4,002,399 a Prime Number?
A: No, 4,002,399 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 4002399 can be evenly divided by 1 3 9 27 271 547 813 1,641 2,439 4,923 7,317 14,769 148,237 444,711 1,334,133 and 4,002,399, with no remainder.
Since 4,002,399 cannot be divided by just 1 and 4,002,399, it is not a prime number.