Q: Is 779,778 a Prime Number?
A: No, 779,778 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 779778 can be evenly divided by 1 2 3 6 9 18 43,321 86,642 129,963 259,926 389,889 and 779,778, with no remainder.
Since 779,778 cannot be divided by just 1 and 779,778, it is not a prime number.