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