Q: Is 6,421,995 a Prime Number?
A: No, 6,421,995 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 6421995 can be evenly divided by 1 3 5 9 15 45 142,711 428,133 713,555 1,284,399 2,140,665 and 6,421,995, with no remainder.
Since 6,421,995 cannot be divided by just 1 and 6,421,995, it is not a prime number.