Question

find the Hcf and lcm of 24,36and 72by factorisation method​

Answer 1

Answer:LCM=72 & HCF =6

Step-by-step explanation:

Prime factor.

24= 2*2*2*3

36= 2*2*3*3

72= 2*2*2*3*3.

Then

HCF = Multiple all common factor of this three no.

= 2*3=6

So HCF=6

LCM= Take common(common in all three or two) factor only one time and remaining then multiply each other.

LCM = 3*3*2*2*2 = 72

SO LCM = 72.

Answer 2

Given numbers = 24, 36, 72

factors of

24 = 2 × 2 × 2 × 3

36 = 2 × 2 × 3 × 3

72 = 2 × 2 × 2 × 3 × 3

HCF = Highest Common factor

= 2 × 2 × 3

= 12

LCM = Lowest Common Multiple

= 2 × 2 × 2 × 2 × 3 × 3 × 3

= 432