Q: Is 4,777,216 a Prime Number?
A: No, 4,777,216 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 4777216 can be evenly divided by 1 2 4 8 16 32 64 128 256 18,661 37,322 74,644 149,288 298,576 597,152 1,194,304 2,388,608 and 4,777,216, with no remainder.
Since 4,777,216 cannot be divided by just 1 and 4,777,216, it is not a prime number.