Q: Is 1,333,216 a Prime Number?
A: No, 1,333,216 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 1333216 can be evenly divided by 1 2 4 8 16 32 61 122 244 488 683 976 1,366 1,952 2,732 5,464 10,928 21,856 41,663 83,326 166,652 333,304 666,608 and 1,333,216, with no remainder.
Since 1,333,216 cannot be divided by just 1 and 1,333,216, it is not a prime number.