Question

find the had of 84,98 and 138

Answer 1

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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