Q: Is 678,684 a Prime Number?
A: No, 678,684 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 678684 can be evenly divided by 1 2 3 4 6 12 23 46 69 92 138 276 2,459 4,918 7,377 9,836 14,754 29,508 56,557 113,114 169,671 226,228 339,342 and 678,684, with no remainder.
Since 678,684 cannot be divided by just 1 and 678,684, it is not a prime number.