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LCM of 686, 931, 147, 898

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


Find the LCM of 686, 931, 147, 898 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 686, 931, 147, 898. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 686,931,147,898

Given numbers are 686,931,147,898

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

The LCM of 686,931,147,898 is 17556798.

Find LCM of 686,931,147,898 with Prime Factorization


2 686, 931, 147, 898
7 343, 931, 147, 449
7 49, 133, 21, 449
7, 19, 3, 449

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

2 x 7 x 7 x 7 x 19 x 3 x 449 = 17556798

Therefore, the lowest common multiple of 686,931,147,898 is 17556798.

LCM Formula to Find Lowest Common Multiple of 686,931,147,898

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.

686 x 931 x 147 x 898 = 84307743996

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.

686 : 1, 2, 7, 14, 49, 98, 343, 686

931 : 1, 7, 19, 49, 133, 931

147 : 1, 3, 7, 21, 49, 147

898 : 1, 2, 449, 898

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 686,931,147,898, is 1.

Now, the common factors can be found like this.

686:2x 7x 7x 7

931:7x 7x 19

147:3x 7x 7

898:2x 449

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 7x 7x 7 = 4802

Therefore, the value for common factors is 4802.

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 = 84307743996/(1x4802)

LCM = 84307743996/4802

LCM = 17556798

Thus, we can understand that the LCM of 686,931,147,898 is 17556798.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 686, 931, 147, 898

1. What is the LCM of 686, 931, 147, 898?

Answer: LCM of 686, 931, 147, 898 is 17556798.

2. How to calculate the LCM of 686, 931, 147, 898?

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 686, 931, 147, 898.

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}.