Find the HCF and LCM of 84 36 98 by prime factorization method
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LCM=2 84,36,98
2 42,18,49
3 21,9, 49
3. 7,3,49
7. 7 ,1,49
7. 1 ,1,7
1,1,1
LCM= 2×2×3×3×7×7=1764
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HCF = 2 and LCM = 1764
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