LCM of 3 Numbers Calculator LCM of 4 Numbers Calculator LCM of 5 Numbers Calculator LCD Calculator How to find LCM LCM and HCF Questions Least Common Denominator Calculator Greatest Common Divisor Calculator HCF Calculator HCF of 3 Numbers Calculator HCF of 4 Numbers Calculator GCD Calculator Greatest Common Factor Calculator Least Common Multiple Calculator Common Factors Calculator

LCM of 638, 469, 462, 155

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


Find the LCM of 638, 469, 462, 155 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 638, 469, 462, 155. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 638,469,462,155

Given numbers are 638,469,462,155

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

The LCM of 638,469,462,155 is 139138230.

Find LCM of 638,469,462,155 with Prime Factorization


2 638, 469, 462, 155
7 319, 469, 231, 155
11 319, 67, 33, 155
29, 67, 3, 155

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

2 x 7 x 11 x 29 x 67 x 3 x 155 = 139138230

Therefore, the lowest common multiple of 638,469,462,155 is 139138230.

LCM Formula to Find Lowest Common Multiple of 638,469,462,155

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.

638 x 469 x 462 x 155 = 21427287420

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.

638 : 1, 2, 11, 22, 29, 58, 319, 638

469 : 1, 7, 67, 469

462 : 1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 462

155 : 1, 5, 31, 155

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,469,462,155, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

469:7x 67

462:2x 3x 7x 11

155:5x 31

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

2x 7x 11 = 154

Therefore, the value for common factors is 154.

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 = 21427287420/(1x154)

LCM = 21427287420/154

LCM = 139138230

Thus, we can understand that the LCM of 638,469,462,155 is 139138230.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 638, 469, 462, 155

1. What is the LCM of 638, 469, 462, 155?

Answer: LCM of 638, 469, 462, 155 is 139138230.

2. How to calculate the LCM of 638, 469, 462, 155?

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 638, 469, 462, 155.

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}.