Question

what is the LCM OF 27, 9, 42, 12​

Answer 1

Step-by-step explanation:

27=3^3

9=3^2

42=2*3*7

12=2^2*3

LCM is we have to take highest power

ie (3^3)*(2^2)*7

Answer 2

Answer:

Given - 27 , 9 , 42 , 12

To find - LCM of this no.

Solution -

27 = 3 × 3 × 3

9 = 3 × 3

42 = 2 × 3 × 7

12 = 2 × 2 × 3

2 ×2 × 3× 3 × 3 × 7

12 × 9 × 7

12 × 63

756

MORE TO KNOW

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• There is a formulae to find LCM and HCF

LCM × HCF = product of 2 numbers.

• LCM = least common multiple

• HCF = Highest common factor.

• This is also explianed in euclid division lemma.

• This formulae is used for 2 no. for more than 2 no. there are differen formulae

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