Lan bought four bags of candy with 65 pieces in each bag. Her father gave her 20 more pieces of candy. She plans to divide all the candy evenly among six friends and keep what is left over for herself. How many pieces of candy will be left over after Lan has evenly divided the candy?

14 pieces will be left.

First we calculate how much candy she has in total.

4 bags x 65 pieces = 4 x 65 = 260

Then add the extra 20 her father gave her, 260 + 20 = 280

Now we divide the total by 6 and the remainder is for herself.

280 / 6 = 46.666 pieces of candy between 6.

So we now move down to the next whole number, which is 46.

i. e. 46 x 6 = 276, so the remaining pieces of candy are 280-276 = 4 for Lan to keep for herself.