Question

find the LCM and HCF of the following integers by the prime factorization method 12,15 and 21
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Answer 1

Answer:

Solution:

Factor of 12=2×2×3

Factor of 15=3×5

Factor of 21=3×7

HCF (12,15,21)=3

LCM (12,15,21)=2×2×3×5×7=420

Answer 2

Answer:

Step-by-step explain

$\frac{3|12 , 15, 21}{ |4 , 5 , 7 }$

LCM = 420  &  HCF =  3