Q: Is 409,216 a Prime Number?
A: No, 409,216 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 409216 can be evenly divided by 1 2 4 8 16 23 32 46 64 92 128 139 184 278 368 556 736 1,112 1,472 2,224 2,944 3,197 4,448 6,394 8,896 12,788 17,792 25,576 51,152 102,304 204,608 and 409,216, with no remainder.
Since 409,216 cannot be divided by just 1 and 409,216, it is not a prime number.