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Playing with numbers — MATHS STD 6 — Question

Gujarat BoardEnglish MediumSTD 6MATHSPlaying with numbers2 Marks
Question
Find the $H.C.F$ of the following numbers using prime factorization method: $225,450$
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Answer

$225$ and $450$ Prime factorization of $225 = 3 \times 3 \times 5 \times 5$
Prime factorization of $198 = 2 \times 3 \times 3 \times 5 \times 5$
Therefore, $HCF = 3 \times 3 \times 5 \times 5 = 225$

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