Question 91

Find the LCM of $$(2^{2} \times 3^{2} \times 5 \times 7)$$,$$(2^{2} \times3\times 5^{2} \times 7)$$ and $$(2 \times 3 \times 5 \times7)$$.

Solution

$$(2^{2} \times 3^{2} \times 5 \times 7)$$

$$(2^{2} \times3\times 5^{2} \times 7)$$

$$(2 \times 3 \times 5 \times7)$$.

lcm is common factor = $$(2 \times 2 \times 3 \times 5\ times 3\times 5\times 7)$$ = 6300

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