Q: Is 409,420 a Prime Number?
A: No, 409,420 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 409420 can be evenly divided by 1 2 4 5 10 11 20 22 44 55 110 220 1,861 3,722 7,444 9,305 18,610 20,471 37,220 40,942 81,884 102,355 204,710 and 409,420, with no remainder.
Since 409,420 cannot be divided by just 1 and 409,420, it is not a prime number.