Q: Is 1,667,728 a Prime Number?
A: No, 1,667,728 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 1667728 can be evenly divided by 1 2 4 8 16 104,233 208,466 416,932 833,864 and 1,667,728, with no remainder.
Since 1,667,728 cannot be divided by just 1 and 1,667,728, it is not a prime number.