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LCM of 731, 689, 689, 231

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


Find the LCM of 731, 689, 689, 231 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 731, 689, 689, 231. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 731,689,689,231

Given numbers are 731,689,689,231

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

The LCM of 731,689,689,231 is 116345229.

Find LCM of 731,689,689,231 with Prime Factorization


13 731, 689, 689, 231
53 731, 53, 53, 231
731, 1, 1, 231

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

13 x 53 x 731 x 1 x 1 x 231 = 116345229

Therefore, the lowest common multiple of 731,689,689,231 is 116345229.

LCM Formula to Find Lowest Common Multiple of 731,689,689,231

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.

731 x 689 x 689 x 231 = 80161862781

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.

731 : 1, 17, 43, 731

689 : 1, 13, 53, 689

689 : 1, 13, 53, 689

231 : 1, 3, 7, 11, 21, 33, 77, 231

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 731,689,689,231, is 1.

Now, the common factors can be found like this.

731:17x 43

689:13x 53

689:13x 53

231:3x 7x 11

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

13x 53 = 689

Therefore, the value for common factors is 689.

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 = 80161862781/(1x689)

LCM = 80161862781/689

LCM = 116345229

Thus, we can understand that the LCM of 731,689,689,231 is 116345229.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 731, 689, 689, 231

1. What is the LCM of 731, 689, 689, 231?

Answer: LCM of 731, 689, 689, 231 is 116345229.

2. How to calculate the LCM of 731, 689, 689, 231?

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 731, 689, 689, 231.

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}.