how many numbers up to 300 and 700 are divisible by 2 , 3 and 7 both together ?
( 700 – 300 ) / 42 = 9 22 / 42 = > 9 numbers answer : a
subtract(divide(subtract(700, 300), lcm(lcm(2, 3), 7)), divide(add(2, multiply(const_2, const_10)), lcm(lcm(2, 3), 7)))