Q: Is 4,240,578 a Prime Number?
A: No, 4,240,578 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 4240578 can be evenly divided by 1 2 3 6 706,763 1,413,526 2,120,289 and 4,240,578, with no remainder.
Since 4,240,578 cannot be divided by just 1 and 4,240,578, it is not a prime number.