Question

find the l.c.m of 81


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Answer 1

Step-by-step explanation:

Steps to find LCM

Find the prime factorization of 9.

Find the prime factorization of 81. 81 = 3 × 3 × 3 × 3.

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM: LCM = 3 × 3 × 3 × 3.

LCM = 81.

Answer 2

Find the prime factorization of 81. 81 = 3 × 3 × 3 × 3.
Find the prime factorization of 84. 84 = 2 × 2 × 3 × 7.
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM: LCM = 2 × 2 × 3 × 3 × 3 × 3 × 7.
LCM = 2268.













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