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LCM of 641, 178, 153, 620

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


Find the LCM of 641, 178, 153, 620 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 641, 178, 153, 620. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 641,178,153,620

Given numbers are 641,178,153,620

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

The LCM of 641,178,153,620 is 5411668140.

Find LCM of 641,178,153,620 with Prime Factorization


2 641, 178, 153, 620
641, 89, 153, 310

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

2 x 641 x 89 x 153 x 310 = 5411668140

Therefore, the lowest common multiple of 641,178,153,620 is 5411668140.

LCM Formula to Find Lowest Common Multiple of 641,178,153,620

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.

641 x 178 x 153 x 620 = 10823336280

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.

641 : 1, 641

178 : 1, 2, 89, 178

153 : 1, 3, 9, 17, 51, 153

620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 641,178,153,620, is 1.

Now, the common factors can be found like this.

641:641

178:2x 89

153:3x 3x 17

620:2x 2x 5x 31

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

2 = 2

Therefore, the value for common factors is 2.

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 = 10823336280/(1x2)

LCM = 10823336280/2

LCM = 5411668140

Thus, we can understand that the LCM of 641,178,153,620 is 5411668140.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 641, 178, 153, 620

1. What is the LCM of 641, 178, 153, 620?

Answer: LCM of 641, 178, 153, 620 is 5411668140.

2. How to calculate the LCM of 641, 178, 153, 620?

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 641, 178, 153, 620.

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}.