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Q.

Find the LCM and HCF of the integers 17, 23 and 29.

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a

11334 and 1 

b

11339 and 1

c

11330 and 2

d

11349 and 2

answer is B.

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Detailed Solution

The given numbers are 17, 23 and 29.
The numbers 17, 23 and 29 are prime numbers, so they do not have any factor other then 1 and the number itself.
LCM(17,23,29)=17×23×29 ⇒LCM(17,23,29)=11339 ⇒HCF(17,23,29)=1 Therefore, the LCM and HCF of the integers 17, 23 and 29 are 11339 and 1 respectively.
Hence, option 2 is correct.
 
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