find the hcf and lcm of pairs of numbers by prime factorisation 120,90
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HEYA!!!!
Here is your answer:
_____________________________
After factorization,
120 = 2 × 2 × 2 × 3 × 5
90 = 2 × 3 × 3 × 5
LCM of 120 and 90 is 2^3 × 3^2 × 5
= 8 × 9 × 5
= 72 × 5
= 360
HCF of 120 and 90 is 2 × 3 × 5 = 30
HOPE THIS HELPS U....
Here is your answer:
_____________________________
After factorization,
120 = 2 × 2 × 2 × 3 × 5
90 = 2 × 3 × 3 × 5
LCM of 120 and 90 is 2^3 × 3^2 × 5
= 8 × 9 × 5
= 72 × 5
= 360
HCF of 120 and 90 is 2 × 3 × 5 = 30
HOPE THIS HELPS U....
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