Question

Find the LCM of the 28,4 2,56.
using short livision
method​

Answer 1

Answer:

step 1 Address input parameters & values.

Integers: 28 42 56

lcm (28, 42, 56) = ?

step 2 Arrange the group of numbers in the horizontal form with space or comma separated format

28, 42 and 56

step 3 Choose the divisor which divides each or most of the integers of in the group (28, 42 and 56), divide each integers separately and write down the quotient in the next line right under the respective integers. Bring down the integer to the next line if the integer is not divisible by the divisor. Repeat the same process until all the integers are brought to 1.

LCM of 28, 42 and 56

14 28 42 56

2 2 3 4

3 1 3 2

2 1 1 2

1 1 1

step 4 Multiply the divisors to find the lcm of 28, 42 and 56

14 x 2 x 3 x 2 = 168

LCM(28, 42, 56) = 168

The least common multiple for three numbers 28, 42 and 56 is 168

Step-by-step explanation:

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Answer 2

168

Step-by-step explanation:

2 28, 42, 56

2 14, 21, 28

7 7, 21, 14

1, 3, 2

∴ So the LCM of the given numbers is 2 x 2 x 7 x 1 x 3 x 2 = 168