Q: Is 216,608 a Prime Number?
A: No, 216,608 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 216608 can be evenly divided by 1 2 4 7 8 14 16 28 32 56 112 224 967 1,934 3,868 6,769 7,736 13,538 15,472 27,076 30,944 54,152 108,304 and 216,608, with no remainder.
Since 216,608 cannot be divided by just 1 and 216,608, it is not a prime number.