what is the lowest positive integer that is divisible by each of the integers 1 through 9 inclusive ?
"we have to find the lcm of 1 , 2 , 3 , 2 ^ 2 , 5 , 2 * 3 , 7 , 2 ^ 3 , and 3 ^ 2 . the lcm is 1 * 2 ^ 3 * 3 ^ 2 * 5 * 7 = 2520 the answer is d ."
lcm(1, 9)