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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

∙ 14y ago
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What is the LCM of 18 and 72 and 81?

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What is the LCM for 81 and 72?

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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The LCM of 3 and 6 is 6 The LCM of 5 and 7 is 35. The LCM of 8 and 9 is 72. The LCM of 12 and 15 is 60.


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LCM is 648, which is the multiple of the highest power of prime factors in the given numbers (23 x 34).


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