Question

what is the lcm of 28 and 32 using prime factors method​

Answer 1

Answer:

28= 2x2x7

32=2x2x2x2x2

LCM=2x2x2x2x2x7

=224

Answer 2

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Least common multiple (LCM) of 28 and 32 is 224.

Explanation:-

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).

We need to calculate greatest common factor 28 and 32, than apply into the LCM equation.

GCF(28,32) = 4

LCM(28,32) = ( 28 × 32) / 4

LCM(28,32) = 896 / 4

LCM(28,32) = 224