Question

find HCF and LCM of 6,72,120give fast

Answer 1

Hey!!!!!

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By Prime Factorisation Method

=> 6 = 2 x 3

=> 72 = 2³ x 3²

=> 120 = 2³ x 3 x 5

Thus

=> HCF(6,72,120) = 2 x 3

=> HCF(6,72,120)= 6

Similarly

=> LCM(6,72,120) = 2³ x 3² x 5

=> LCM(6,72,120) = 8 x 9 x 5

=> LCM = 360

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Hope this helps ✌️

Answer 2

The answer is given below :

The given numbers are 6, 72 and 120.

By prime factorization method, we find

6 = 2 × 3

72 = 2 × 2 × 2 × 3 × 3

120 = 2 × 2 × 2 × 3 × 5

HCF = HIGHEST COMMON FACTOR,
i.e., the common factors of all the three numbers

So, required HCF

= 2 × 3

= 6

LCM = LEAST COMMON MULTIPLE,
i.e., the number multipled by all the three numbers

So, required LCM

= 2 × 3 × 2 × 2 × 3 × 5

= 360

Thank you for your question.