Question says that 47322 bulbs are to be packed in several boxes. each box should contain equal numbers of bulbs and no bulb should be left unpacked. Now we need to find the number of boxes that can be used.
Bulb will not be left only if the number of boxes can divide total number of bulbs evenly.
Like 2 divides 47322 evenly without leaving remainder and gives 23661.
So answer will be 2 boxes having 23661 bulbs in each box.
We can find more answers by finding other factors of 47322
like 6 divides 47322 and gives 7887
So answer will be 6 boxes where each box will contain 7887 bulbs.