Using prime factorisation, find the HCF and LCM of :
, (i) 8,9,25 (ii) 12,15,21 (iii) 17 ,23,29
(iv) 24,36,40 (v) 30,72,432 (vi) 21,28,36,45

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1 Answers

Correct Answer - (i) HCF=36, LCM=- 11880 , (ii) HCF= 18, LCM=1548
(iii) HCF= 1, LCM= 11339
(iv) HCF = 4, LCM= 360
(v) HCF= 6, LCM= 2160
(vi) HCF= 1, LCM= 1260

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