Using prime factorisation, find the HCF and LCM of 21,28,36,4
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we have..,,
21 = 3×7
28 = 2×2×7
36 = 2×2×3×3
4 = 2×2
HCF = 0 and LCM = 252..
21 = 3×7
28 = 2×2×7
36 = 2×2×3×3
4 = 2×2
HCF = 0 and LCM = 252..
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