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LCM of 646, 188, 638, 173

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


Find the LCM of 646, 188, 638, 173 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 646, 188, 638, 173. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 646,188,638,173

Given numbers are 646,188,638,173

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

The LCM of 646,188,638,173 is 3351175388.

Find LCM of 646,188,638,173 with Prime Factorization


2 646, 188, 638, 173
323, 94, 319, 173

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

2 x 323 x 94 x 319 x 173 = 3351175388

Therefore, the lowest common multiple of 646,188,638,173 is 3351175388.

LCM Formula to Find Lowest Common Multiple of 646,188,638,173

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.

646 x 188 x 638 x 173 = 13404701552

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.

646 : 1, 2, 17, 19, 34, 38, 323, 646

188 : 1, 2, 4, 47, 94, 188

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

173 : 1, 173

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,188,638,173, is 1.

Now, the common factors can be found like this.

646:2x 17x 19

188:2x 2x 47

638:2x 11x 29

173:173

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

2x 2 = 4

Therefore, the value for common factors is 4.

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 = 13404701552/(1x4)

LCM = 13404701552/4

LCM = 3351175388

Thus, we can understand that the LCM of 646,188,638,173 is 3351175388.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 646, 188, 638, 173

1. What is the LCM of 646, 188, 638, 173?

Answer: LCM of 646, 188, 638, 173 is 3351175388.

2. How to calculate the LCM of 646, 188, 638, 173?

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 646, 188, 638, 173.

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}.