doubts

Q7 — Prime factorization of 4851 (by division):

3 | 4851
3 | 1617
7 |  539
7 |   77
11|   11
  |    1

4851 = 3 × 3 × 7 × 7 × 11

Making pairs: (3×3) × (7×7) × 11

→ 11 is left without a pair

→ Multiply by 11 to complete its pair

Answer: 11

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Q8 — Prime factorization of 1152:

2 | 1152
2 |  576
2 |  288
2 |  144
2 |   72
2 |   36
2 |   18
3 |    9
3 |    3
  |    1

1152 = 2×2 × 2×2 × 2×2 × 2 × 3×3

Pairs: (2×2)(2×2)(2×2) × (3×3) → 2 is unpaired once

→ Divide by 2 → result = 576 = 24²

Answer: Divide by 2, resulting number = 576