Q: Is 1,245,978 a Prime Number?
A: No, 1,245,978 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 1245978 can be evenly divided by 1 2 3 6 9 18 69,221 138,442 207,663 415,326 622,989 and 1,245,978, with no remainder.
Since 1,245,978 cannot be divided by just 1 and 1,245,978, it is not a prime number.