What is the minimum number of apples that must be added to the existing stock of 264 apples so that the total stock can be equally distributed among 6, 7 or 8 persons ?

Bangladesh Bank Bangladesh Bank - Assistant Director - 2006 গণিত বীজগণিতীয় রাশিমালার ল.সা.গু ও গ.সা.গু (L.C.M & H.C.F of algebraic expressions )