Question

find the lcm 4,12,20​

Answer 1

Step-by-step explanation:

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LCM means least common multiple . It in turn means a least number which is divisible by all given numbers.

To find lcm, use smallest number that divides maximum given numbers

2 | 4,12,20

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2|2,6,10

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1,3,5

So, 2*2*1*3*5 = 60

Answer 2

Answer:

The lcm of 4, 12, and 20​ is 60.

Step-by-step explanation:

Given: The numbers are 4, 12, and 20​.

We have to find the lcm of the above numbers.

• As we know, the lcm is the least number, which is exactly divisible, by two or more numbers.

We are solving in the following way:

We have,

The numbers are 4, 12, and 20​.

First, we will find all prime factors for each number.

Prime Factorization of 4 is:

$2 \times 2 => 2^2$

Prime Factorization of 12 is:

$2 \times 2 \times 3 => 2^2 \times 3^1$

Prime Factorization of 20 is:

$2 \times 2 \times 5 => 2^2 \times 5^1$

For each prime factor, we will find where it occurs most often as a factor and write it that many times in a new list.

The new list is:

2, 2, 3, 5

Multiplying these factors together to find the LCM:

$LCM = 2 \times 2 \times 3\times 5 = 60$

Therefore,

LCM(4, 12, 20) = 60

NOTE:

Q. Find the lcm of 4,12,20​.