Q: Is 778,401 a Prime Number?
A: No, 778,401 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 778401 can be evenly divided by 1 3 9 13 39 117 6,653 19,959 59,877 86,489 259,467 and 778,401, with no remainder.
Since 778,401 cannot be divided by just 1 and 778,401, it is not a prime number.