find the LCM and HCF of the following integers by applying the prime factorisation method
= 12,15 and 21
Answers
Answered by
18
12 = 2 × 2 × 3
15 = 3 × 5
21 = 3 × 7
HCF = 3
LCM = 2 × 2 × 3 × 5 × 7
LCM = 420
15 = 3 × 5
21 = 3 × 7
HCF = 3
LCM = 2 × 2 × 3 × 5 × 7
LCM = 420
Answered by
6
12=2,2,3,15=3,5,21=3,7 hcf=3 lcm=320
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