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Product of Two Numbers = HCF x LCM

If the LCM of...

Question

If the LCM of two numbers 39 and 221 is 663, what is the HCF?

A

39

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B

7

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C

13

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D

66

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Solution

The correct option is C 13
$S i n c e p r o d u c t o f t w o n u m b e r s = L C M \times H C F$
$T h u s, 39 \times 221 = 663 \times H C F$
$H C F = 13$ .

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Similar questions

If the L.C.M of two numbers 39 and 221 is 663, then the H.C.F of the numbers would be 13.

Q. The LCM of the two quotients obtained when two numbers a and b are divided by their HCF is 77. LCM of another pair of quotients. when other two numbers c and d have the same HCF as that of a and b, and when divided by it is 221. Which of the following could be the ratio of the sum of a and b to that of the difference between c and d?

Q. If sum of LCM and HCF of two number is

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and their LCM is

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more than their HCF, then the product of two numbers will be :

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