Question

3. Find the HCF and the LCM of the following pairs of numbers. Also verify the
relationship between them.
a) 56 and 7 b) 81 and 3 c) 96 and 6 d) 45 and 5 e) 82 and 2
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Answer 1

Answer:

a)56=2×3×3×3×1

7=7×1

HCF=1(because 1is the only common factor of 56&7)

LCM= 2×3³×7

=378

b)81=3×3×3×3

6=2×3

HCF= 3( since 3common factor )

LCM=3⁴×2

=162

c)96=2×2×2×2×2×3

6=2×3

HCF=6( since 2 and 3are common factor so 2×3=6)

LCM=2⁵×3

=96

d)45=3×3×5

5=5×1

HCF=5 ( SINCE ONLY 5 IS THE COMMON FACTOR)

LCM=3²×5

=9×5

=5

in last one I have some doubt about the number is 81 or 82 that's why I have not solve it ... sorry

Answer 2

Step-by-step explanation:

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