Multiple choice What is the smallest common multiple of 1, 7, 11, 49 and 77? 234 539 1 7 Reveal answer Fill a bubble to check yourself B Correct answer Explanation 49 = 7*7, 77 = 7*11 So 77 is the smallest common multiple of 1, 7, 11 and 77, then we just need find out the smallest common multiple of 49 and 77, which should be 7*7*11 = 539.