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 820, 990, 423, 938

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


Find the LCM of 820, 990, 423, 938 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 820, 990, 423, 938. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 820,990,423,938

Given numbers are 820,990,423,938

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

The LCM of 820,990,423,938 is 1789450740.

Find LCM of 820,990,423,938 with Prime Factorization


2 820, 990, 423, 938
3 410, 495, 423, 469
3 410, 165, 141, 469
5 410, 55, 47, 469
82, 11, 47, 469

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

2 x 3 x 3 x 5 x 82 x 11 x 47 x 469 = 1789450740

Therefore, the lowest common multiple of 820,990,423,938 is 1789450740.

LCM Formula to Find Lowest Common Multiple of 820,990,423,938

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.

820 x 990 x 423 x 938 = 322101133200

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.

820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

423 : 1, 3, 9, 47, 141, 423

938 : 1, 2, 7, 14, 67, 134, 469, 938

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 820,990,423,938, is 1.

Now, the common factors can be found like this.

820:2x 2x 5x 41

990:2x 3x 3x 5x 11

423:3x 3x 47

938:2x 7x 67

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

2x 2x 3x 3x 5 = 180

Therefore, the value for common factors is 180.

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 = 322101133200/(1x180)

LCM = 322101133200/180

LCM = 1789450740

Thus, we can understand that the LCM of 820,990,423,938 is 1789450740.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 820, 990, 423, 938

1. What is the LCM of 820, 990, 423, 938?

Answer: LCM of 820, 990, 423, 938 is 1789450740.

2. How to calculate the LCM of 820, 990, 423, 938?

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 820, 990, 423, 938.

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}.