Chapter 7, Problem 9E

The least common multiple (1cm) of two positive integers u and v is the smallest positive integer that is evenly divisible by both u and v. Thus, the 1cm of 15 and 10, written lcm (15, 10), is 30 because 30 is the smallest integer divisible by both 15 and 10. Write a function 1 that takes two integer arguments and returns their 1cm. The 1 function should calculate the least common multiple by calling the g function from Program 7.6 in accordance with the following identity:

lcm (u, v) = uv / gcd (u, v) u, v >= 0