Q: Is 6,728,418 a Prime Number?
A: No, 6,728,418 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 6728418 can be evenly divided by 1 2 3 6 9 18 101 202 303 606 909 1,818 3,701 7,402 11,103 22,206 33,309 66,618 373,801 747,602 1,121,403 2,242,806 3,364,209 and 6,728,418, with no remainder.
Since 6,728,418 cannot be divided by just 1 and 6,728,418, it is not a prime number.