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CBSE Class 6 Answered

Find the LCM of 27,54 and 90
Asked by surbhikumari808411 | 03 Jul, 2019, 07:29: PM
answered-by-expert Expert Answer
The LCM of 27,54 and 90
 
27 = 3 × 3 × 3
54 = 3 × 18
     = 3 × 3 × 3 × 2
90 = 3 × 30
    = 3 × 3 × 10
    = 3 × 3 × 2 × 5
2 appears maximum 1 time in two of the prime factorisations.
3 appears maximum of 3 times in the two of the prime factorisations.
5 appears maximum once in one of the prime factorisation.
LCM of 27, 54, 90 = 3 × 3 × 3 × 2 × 5 = 270
 
Answered by Sneha shidid | 04 Jul, 2019, 09:45: AM
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