Q: Is 8,421,708 a Prime Number?
A: No, 8,421,708 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 8421708 can be evenly divided by 1 2 3 4 6 12 31 62 93 124 186 372 22,639 45,278 67,917 90,556 135,834 271,668 701,809 1,403,618 2,105,427 2,807,236 4,210,854 and 8,421,708, with no remainder.
Since 8,421,708 cannot be divided by just 1 and 8,421,708, it is not a prime number.