Question

The product of HCF and LCM of 42, 36 and 72 is *​

Answer 1

Answer:

ஃ, LCM = 504

HCF = 6

Step-by-step explanation:

LCM

2 | 42, 36, 72

2 | 21, 18, 36

2 | 21, 9, 18

3 | 21, 9, 9

3 | 7, 3, 3

7 | 7, 1, 1

1, 1, 1

LCM of 42, 36 and 72 = 2 × 2 × 2 × 3 × 3 × 7 = 504

HCF

2 | 42 2 | 36 2 | 72

3 | 21 2 | 18 2 | 36

7 | 7 3 | 9 2 | 18

1 3 | 3 3 | 9

1 3 | 3

1

Factors of 42 = 2 × 3 × 7

Factors of 36 = 2 × 2 × 3 × 3

Factors of 72 = 2 × 2 × 2 × 3 × 3

HCF of 42, 36 and 72 = 2 × 3 = 6