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LCM of 840, 931, 856, 346

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


Find the LCM of 840, 931, 856, 346 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 840, 931, 856, 346. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 840,931,856,346

Given numbers are 840,931,856,346

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

The LCM of 840,931,856,346 is 2068048920.

Find LCM of 840,931,856,346 with Prime Factorization


2 840, 931, 856, 346
2 420, 931, 428, 173
2 210, 931, 214, 173
7 105, 931, 107, 173
15, 133, 107, 173

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

2 x 2 x 2 x 7 x 15 x 133 x 107 x 173 = 2068048920

Therefore, the lowest common multiple of 840,931,856,346 is 2068048920.

LCM Formula to Find Lowest Common Multiple of 840,931,856,346

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.

840 x 931 x 856 x 346 = 231621479040

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.

840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

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

856 : 1, 2, 4, 8, 107, 214, 428, 856

346 : 1, 2, 173, 346

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 840,931,856,346, is 1.

Now, the common factors can be found like this.

840:2x 2x 2x 3x 5x 7

931:7x 7x 19

856:2x 2x 2x 107

346:2x 173

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 2x 2x 7 = 112

Therefore, the value for common factors is 112.

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 = 231621479040/(1x112)

LCM = 231621479040/112

LCM = 2068048920

Thus, we can understand that the LCM of 840,931,856,346 is 2068048920.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 840, 931, 856, 346

1. What is the LCM of 840, 931, 856, 346?

Answer: LCM of 840, 931, 856, 346 is 2068048920.

2. How to calculate the LCM of 840, 931, 856, 346?

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 840, 931, 856, 346.

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}.