Question

find the LCM of 12 56 and 72

Answer 1

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Here is your answer

$12 = 2 {}^{2} \times 3$

$56 = 2 {}^{3} \times 7$

$72 = 2 {}^{3} \times 3 {}^{2}$

$lcm = 2 {}^{3} \times 3 {}^{2} \times 7$

$lcm = 8 \times 9 \times 7 \\ \\ = 504$

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Answer 2

we have

12=2×2×3

56=2×2×2×7

72=2×2×2×3×3

so, LCM =2×2×2×3×3×7=504.

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