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What is the LCM of 81 and 72?

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Anonymous

∙ 9y ago
Updated: 10/17/2024

648

Express each number as their prime compositions in power notation:

72 = 2332

81 = 34

For LCM take the highest power of each prime across the numbers:

LCM = 2334

= 8 x 81

= 648

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Wiki User

∙ 15y ago
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Oh, dude, the least common multiple (LCM) of 81 and 72 is 648. It's like when you're trying to find the smallest number that both 81 and 72 can both divide into evenly without leaving a remainder. So yeah, 648 is the magic number that makes both 81 and 72 happy.


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