They're giving you some of the factors for a number (in ascending order, it looks like) and you have to figure out the number and then list the rest of the factors.
Remember that for any number, N, both 1 AND N are factors. So, looking at your first list, your number has 1 as a smallest factor and 12 as a biggest factor, so the number must be equal to 1 x 12 = 12.
The factors of 12 are 1, 2, 3, 4, 6, 12 which accurately fills in the rest of your list.
I'll leave the second one.