Question

find the HCF and LCM of 120 and 90 by prime factorization​

Answer 1

Answer:

HCF= 30

LCM= 360

Hope this will be helpful

Answer 2

The HCF is 30 and LCM is 600

Step-by-step explanation:

Numbers : 120 and 90

HCF:

2 | 120         2 | 90

2 | 60          5 | 45

2 | 30          3 | 9

5 | 15           3 | 3

3 |  3               | 1

   |  1

$120 = 2 \times 2 \times 2 \times 5 \times 3\\90 = 2 \times 3 \times 3 \times 5 \\HCF = 2 \times 3 \times 5\\HCF = 30$

LCM :

2 | 120 , 90

2 | 60 , 45

2 | 30 , 45

3 | 15 , 45

5 | 5 , 15

3 | 1 , 3

  | 1 ,1

LCM =$2 \times 2 \times 2 \times 3 \times 5 \times 5 = 600$

Hence The HCF is 30 and LCM is 600

#Learn more:

Find the HCF and LCM by prime factor method 120 and 150 or 90 ​

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