Q: Is 1,428,567 a Prime Number?
A: No, 1,428,567 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 1428567 can be evenly divided by 1 3 7 21 59 177 413 1,153 1,239 3,459 8,071 24,213 68,027 204,081 476,189 and 1,428,567, with no remainder.
Since 1,428,567 cannot be divided by just 1 and 1,428,567, it is not a prime number.