45: 1, 3, 5, 9, 15, 45
60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 60
78: 1, 78, 2, 29, 3, 26, 6, 13,
84: 1, 84, 2, 42, 3, 28, 4, 21, 6, 14, 7, 12,
99: 1, 99, 3, 33, 9, 11
7.3m questions
9.8m answers