Question

Find the HCF of 84 and 144 by the Prime Factorisation method

Answer 1

Answer:

84=2×2×3×7

144=2×2×2×2×3×3

hcf=2×2×3=12

Answer 2

1. 2 84
2. 2. 42
3. 3. 21
4. 7. 7
5. 1

2. 144

2. 72

3. 36

3. 12

2. 4

2. 2

1