What is the lcm of 20, 45, and 80
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Answer:
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Prime factorization of the numbers:
20 = 2 × 2 × 5
45 = 3 × 3 × 5
80 = 2 × 2 × 2 × 2 × 5
LCM(20, 45, 80)
= 2 × 2 × 2 × 2 × 3 × 3 × 5
= 720
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