Question

Find the l.c.m. Of 28,48,72 by prime factorisation

Answer 1

Answer:

2 | 28,48,72

2 | 14,24,36

2 | 7, 12, 18

2 | 7, 6, 9

3 | 7, 2, 3

2 | 7, 1, 3

3 | 7, 1, 1

7 | 1, 1, 1

LCM=2*2*2*2*3*2*3*7

=2016

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