Q: Is 1,207,728 a Prime Number?
A: No, 1,207,728 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 1207728 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 8,387 16,774 25,161 33,548 50,322 67,096 75,483 100,644 134,192 150,966 201,288 301,932 402,576 603,864 and 1,207,728, with no remainder.
Since 1,207,728 cannot be divided by just 1 and 1,207,728, it is not a prime number.