Q: Is 159,778 a Prime Number?
A: No, 159,778 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 159778 can be evenly divided by 1 2 79,889 and 159,778, with no remainder.
Since 159,778 cannot be divided by just 1 and 159,778, it is not a prime number.