find HCF and LCM of12,15,21 by prime factorisation method
Answers
Answered by
6
12 =2×2×3
15 =3×5
21 =3×7
common factor = 3
HCF = 2
LCM =2×2×3×5×7 =420
Answered by
1
Answer:
Step-by-step explanation:
HCF IS= 3 AND
LCM IS = 420
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