Math and Arithmetic
Factoring and Multiples

# What is the LCM of 54 and 72 and 81?

012 ###### 2013-08-07 16:19:40

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

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## Related Questions  The Least Common Multiple (LCM) for 81 72 is 648.     GCD: 27 LCM: 162 All common factors of 81 and 54 are all multiples of their LCM.    The LCM of the given three numbers is 810 Least Common Multiple (LCM) for 54 72 is 216 The GCF of 54, 72, and 81 is 9.The prime factorization of 54 is 2*3*3*3The prime factorization of 72 is 2*2*2*3*3The prime factorization of 81 is 3*3*3*3The GCF, then, is 3*3 = 9 648 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 54 = 2 &times; 3&sup3; 72 = 2&sup3; &times; 3&sup2; Answer = 2&sup3; &times; 3&sup3; = 8 &times; 27 = 216 THe LCM of 27, 36, 54, and 81 is 324. 81 = 34 36 = 22 x 32 54 = 2 x 33 27 = 33 lcm = 22 x 34 = 324 the LCM [lowest common multiple] of 18 and 24 is 72. The factors of 18 are 18, 36, 54, and 72. the factors of 24 are 24, 48, and 72. therefor, the LCM is 72.  8: 8, 16, 24, 32, 40, 48, 56, 64, 729: 9, 18, 27, 36, 45, 54, 63, 72, 81Answer: LCM=72 The Least Common Multiple (LCM) for 36 54 and 72 is 216.36 = 22 x 3254 = 2 x 3372 = 23 x 32lcm = 23 x 33 = 216 27: 27, 54, 81, 108 36: 36,72, 108 Lcm= 108 The LCM of 3 and 4 is 12. The LCM of 5 and 15 is 15. The LCM of 24 and 36 is 72. The LCM of 24 and 81 is 648. The factors of 54 are:1, 2, 3, 6, 9, 18, 27, 54The factors of 72 are:1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72The factors of 81 are:1, 3, 9, 27, 81The common factors are:1, 3, 9 54 = 2 x 2772 = 8 x 9108 = 4 x 27The LCM of 54, 72, and 108 is 8 x 27 = 216. ###### Math and ArithmeticFactoring and MultiplesEntertainment & Arts Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.