Answers

  1. \(3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48\)

  2. \(8, 16, 24, 32, 40, 48\)

  3. \(2, 3, 6\)

  4. \(2, 3, 5, 6, 10\)

  5. \(1, 2, 3, 5, 6, 10, 15, 30\)

  6. \(1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180\)

  7. prime

  8. composite