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Find the HCF and LCM of the following by prime factorisation method : (i) 12,18,24 (ii) 15,25,45

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Find the HCF and LCM of the following by prime factorisation method :
(i) 12,18,24 (ii) 15,25,45
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(i) image
`:. 12=2xx2xx3`
`18=2xx3xx3`
`24=2xx2xx3xx2`
Now, HCF `=2xx3=6`
and `LCM=2xx2xx3xx3xx2=72`
(ii) image
`:. 15=3xx5`
`25=5xx5`
`45=3xxx5xx3`
Now, HCF`=5`
and LCM`=3xx5xx5xx3=225`
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