Prime factors of 15 and 18: 15=3×5 18=2×3×3 Hence, LCM of 15 and 18 is 3×5×3×2=90 ...

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Least Common Multiple (LCM)

LCM of 15 and...

Question

LCM of $15$ and $18$ is

270

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30

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9

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90

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Solution

The correct option is D $90$

Prime factors of $15$ and $18 :$
$15 = 3 \times 5 18 = 2 \times 3 \times 3$
Hence, LCM of $15$ and $18$ is
$3 \times 5 \times 3 \times 2 = 90$

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