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Q.

Find the LCM of the given numbers by division method: 20, 36, 63, 67.


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a

84420

b

42210

c

21105

d

None 

answer is A.

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Detailed Solution

Question ImageMultiplying 2, 2, 3, 3, 5, 7, 67 we get,
2×2×3×3×5×7×67=84420
Therefore, the least common multiple of 20, 36, 63, 67 is 84420.
 
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