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LCM of 138, 564, 189, 981

Created By : Jatin Gogia
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023


Find the LCM of 138, 564, 189, 981 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 138, 564, 189, 981. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 138,564,189,981

Given numbers are 138,564,189,981

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 138,564,189,981 is 89078724.

Find LCM of 138,564,189,981 with Prime Factorization


2 138, 564, 189, 981
3 69, 282, 189, 981
3 23, 94, 63, 327
23, 94, 21, 109

Multiply the prime numbers at the bottom and the left side.

2 x 3 x 3 x 23 x 94 x 21 x 109 = 89078724

Therefore, the lowest common multiple of 138,564,189,981 is 89078724.

LCM Formula to Find Lowest Common Multiple of 138,564,189,981

LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

Firstly, we have to find the product of all the numbers.

138 x 564 x 189 x 981 = 14430753288

Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.

138 : 1, 2, 3, 6, 23, 46, 69, 138

564 : 1, 2, 3, 4, 6, 12, 47, 94, 141, 188, 282, 564

189 : 1, 3, 7, 9, 21, 27, 63, 189

981 : 1, 3, 9, 109, 327, 981

3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 138,564,189,981, is 3.

Now, the common factors can be found like this.

138:2x 3x 23

564:2x 2x 3x 47

189:3x 3x 3x 7

981:3x 3x 109

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2x 3x 3x 3 = 54

Therefore, the value for common factors is 54.

Now that we have all the elements of the formula, we can plug them in to calculate the LCM.

LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

LCM = 14430753288/(3x54)

LCM = 14430753288/162

LCM = 89078724

Thus, we can understand that the LCM of 138,564,189,981 is 89078724.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 138, 564, 189, 981

1. What is the LCM of 138, 564, 189, 981?

Answer: LCM of 138, 564, 189, 981 is 89078724.

2. How to calculate the LCM of 138, 564, 189, 981?

The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 138, 564, 189, 981.

3. What is the LCM formula?

The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.