Q: Is 1,637,728 a Prime Number?
A: No, 1,637,728 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 1637728 can be evenly divided by 1 2 4 8 16 32 61 122 244 488 839 976 1,678 1,952 3,356 6,712 13,424 26,848 51,179 102,358 204,716 409,432 818,864 and 1,637,728, with no remainder.
Since 1,637,728 cannot be divided by just 1 and 1,637,728, it is not a prime number.