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Byju's Answer
Standard X
Mathematics
Product of Two Numbers = HCF X LCM of the Two Numbers
hcf and lcm o...
Question
hcf and lcm of 20 and 30
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Solution
Prime factorisation of 20 =
2
×
2
×
5
And prime factorisation of 30 =
2
×
3
×
5
So H.C.F of 20 and 30 =
2
×
5
=
10
And L.C.M of 20 and 30 is given by;
2
20
,
30
5
10
,
15
2
,
3
Therefore L.C.M of 20 and 30 =
2
×
5
×
2
×
3
=
60
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