Question

find the HCF and LCM of the following given pairs of the numbers of prime factorization method 1 20and 90​

Answer 1

Answer:

360

Step-by-step explanation:

120, 90

Write the given numbers into product  of prime.

120 = 2 × 2 × 2 × 3 × 5

= 2³ × 3 × 5

90 = 2 × 3 × 3 × 5

= 2 × 3² × 5

 HCF( 90, 120) = 2 × 3 × 5 = 30

LCM( 90 , 120 ) = 2³ × 3² × 5 = 360

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