Q: Is 421,016 a Prime Number?
A: No, 421,016 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 421016 can be evenly divided by 1 2 4 8 52,627 105,254 210,508 and 421,016, with no remainder.
Since 421,016 cannot be divided by just 1 and 421,016, it is not a prime number.