Q: Is 817,420 a Prime Number?
A: No, 817,420 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 817420 can be evenly divided by 1 2 4 5 10 20 23 46 92 115 230 460 1,777 3,554 7,108 8,885 17,770 35,540 40,871 81,742 163,484 204,355 408,710 and 817,420, with no remainder.
Since 817,420 cannot be divided by just 1 and 817,420, it is not a prime number.