Q: Is 159,978 a Prime Number?
A: No, 159,978 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 159978 can be evenly divided by 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 293 546 586 879 1,758 2,051 3,809 4,102 6,153 7,618 11,427 12,306 22,854 26,663 53,326 79,989 and 159,978, with no remainder.
Since 159,978 cannot be divided by just 1 and 159,978, it is not a prime number.