Q: What is the LCM for 81 and 72?

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The Least Common Multiple (LCM) for 54 72 81 is 648.

648

1296

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

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.

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

Factor each one and use each prime factor the most it was used in any of the numbers. 9=3x3 12=2x2x3 81=3x3x3x3 2x2x3x3x3x3=324

The LCM is: 7272

The LCM is 72.

LCM of 81 and 3 is 81.

The LCM is: 72lcm(9, 8, 6) = 72

The LCM is 162.