Question

What is the LCM of 3,7,21,14 ?​

Answer 1

Answer:

42

Step-by-step explanation:

Least common multiple simply means the "smallest" number which is common in the multiplication tables of the given set of numbers. Hence , for 7,14,and 21 it will be 42 as it is the smallest number which is common in the tables of the given numbers

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Answer 2

$\huge\bold\red{Question}$

• What is the LCM of 3,7,21,14 ?

$\huge\bold\red{Solution}$

$\green\implies$${\small{\green{\mathfrak{3|3,7,21,14}}}}$

$\green\implies$${\small{\green{\mathfrak{7|1,7,7,14}}}}$

$\green\implies$${\small{\green{\mathfrak{|1,1,1,2}}}}$

${\small{\green{\mathfrak{L.C.M.=3×7×2=42}}}}$

$\small\rm{The \: L.C.M. \: 'Least \: common \: multiple' \: simply \: means \: }$

$\small\rm{that \: the \: smallest \: common \: number \: in \: the \: given \: set \: of \: numbers \:}$

$\small\rm{on \: multiplication.}$