Question

6 Find the LCM and HCF of 6 and 20 by the prime factoriation method​

Answer 1

Step-by-step explanation:

6 = 2 × 3

20 = 2 × 2 × 5

LCM is 60

HCF is 2

Answer 2

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H.C.F:-

factors of 6 = 2×3

factors of 20 = 2×2×5

here, 2 is common between them hence, it is the H.C.F .

L.C.M:-

multiples of 6 = 6, 12, 18, 24, 30, 36, 42, 48, 54, 60 ...

multiples of 20 = 20, 40, 60, 80, 100 ....

here, 60 is common between them. Hence, 60 is the L.C.M of these 2 no.s

Additional information:-

$\underline{\boxed{\sf product\: of \:no.s = L.C.M×H.C.F}}$