a gardener wants to plant trees in his garden in such a way that the number of trees in each row should be the same . if there are 7 rows or 6 rows or 4 rows , then no tree will be left . find the least number of trees required
"explanation : the least number of trees that are required = lcm ( 7 , 6,4 ) = 84 . answer : b"
divide(multiply(multiply(4, 6), 7), const_2)