... factor: 2, 3 Two prime factors: 2 × 2, 2 × 3, 3 × 3 Three prime factors: 2 × 2 × 2, 2 × 2 × 3, 2 × 3 ×3, 3 × 3 × 3 Four prime factors: 2 × 2 × 2 × 2, 2 × 2 × 2 × 3, 2 × 2 × 3 × 3, 2 × 3 × ... when -2( S – 4) 2 = 0, i.e. when S = 4. (D) .0008 1000 Six prime factors: 2 × 2 × 2 × 2 × 3 × 3, 2 × 2 × 2 × 3 × 3 × 3, 2 × 2 × 3 × 3 × 3 × 3 Seven prime factors: 2 × 2 × 2 × 2 × ... × 3, 2 × 3 × 3 × 3, 3 × 3 × 3 × 3 Five prime factors: 2 × 2 × 2 × 2 × 3, 2 × 2 × 2 × 3 × 3, 2 × 2 × 3 × 3 × 3, 2 × 3 × 3 × 3 × 3 Answers 1. The number of integers between 51 and 107,...