Question

find the HCF of the numbers in each of the folowing,using the prime factorisation method: 84,120,138​

Answer 1

Answer:

2

please mark it as brainiest answer

84=42

120=60

138=69

Answer 2

Step-by-step explanation:

2 by 84=42

2 by 42=21

3 by 21=7

7 by 7=1

2 by 120=60

2 by 60=30

2 by 30=15

3 by 15=5

5 by 5=1

2 by 138=69

3 by 69=23

23 by 23=1

84=2×2×3×7

120=2×2×2×3×5

138=2×3×23

common factors of 84,120and138=

2×3=6