Question

Hcf and lcm of 50 and 80

Answer 1

HCF will be 5
While,
LCM is 400

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Answer 2

The least common multiple of 50 and 80 can be computed by using the greatest common factor aka gcf of 50 and 80. This is the easiest approach:

lcm (50,80) =

50×80

gcf(50,80)

=

4000

10

50×80gcf(50,80)=400010

= 400

Alternatively, the lcm of 50 and 80 can be found using the prime factorization of 50 and 80:

•The prime factorization of 50 is: 2 x 5 x 5

•The prime factorization of 80 is: 2 x 2 x 2 x 2 x 5

•Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(50,50) = 400

AND HCF=5