Q: Is 8,420,872 a Prime Number?
A: No, 8,420,872 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 8420872 can be evenly divided by 1 2 4 8 1,052,609 2,105,218 4,210,436 and 8,420,872, with no remainder.
Since 8,420,872 cannot be divided by just 1 and 8,420,872, it is not a prime number.