Ответ:

  1. 24 = 2 × 12 = 2 × 2 × 6 = 2 × 2 × 2 × 3.

  2. 36 = 2 × 18 = 2 × 2 × 9 = 2 × 2 × 3 × 3.

  3. 54 = 2 × 27 = 2 × 3 × 3 × 3.

  4. 72 = 2 × 36 = 2 × 2 × 18 = 2 × 2 × 2 × 9 = 2 × 2 × 2 × 3 × 3.

  5. 100 = 2 × 50 = 2 × 2 × 25 = 2 × 2 × 5 × 5.