Question

(Pls respond ASAP)...................Find the HCF of the following by the prime factorization method:
a) 30, 45 and 54
b) 42, 55, 56
c) 36 and 48

Answer 1

Step-by-step explanation:

a)

2/30 3/45 2/54

3/15 3/15 3/27

5/5 5/5 3/9

1/1 1/1 3/3

1/1

hcf=3

b)

2/42 5/55 2/56

3/2 11/11 2/28

7/7 1/1 19/19

1/1 1/1

hcf=1

c)

2/36 2/48

13/13 2/24

1/1 2/12

2/6

3/3

1/1

hcf =2