find the had of 84,98 and 138
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Answer:
98 = 2 \times 7 \times 798=2×7×7
84 = 2 \times 2 \times 3 \times 784=2×2×3×7
138 = 2 \times 3 \times 23138=2×3×23
in this the 2 is common number so
LCM is
2 \times 7 \times 7 \times 2 \times 3 \times 7 \times 3 \times2×7×7×2×3×7×3×
\times 23 = 142002×23=142002
and HCF is common number that is 2
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