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LCM of 209, 639, 969, 728

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


Find the LCM of 209, 639, 969, 728 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 209, 639, 969, 728. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 209,639,969,728

Given numbers are 209,639,969,728

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

The LCM of 209,639,969,728 is 1652827176.

Find LCM of 209,639,969,728 with Prime Factorization


3 209, 639, 969, 728
19 209, 213, 323, 728
11, 213, 17, 728

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

3 x 19 x 11 x 213 x 17 x 728 = 1652827176

Therefore, the lowest common multiple of 209,639,969,728 is 1652827176.

LCM Formula to Find Lowest Common Multiple of 209,639,969,728

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.

209 x 639 x 969 x 728 = 94211149032

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.

209 : 1, 11, 19, 209

639 : 1, 3, 9, 71, 213, 639

969 : 1, 3, 17, 19, 51, 57, 323, 969

728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 209,639,969,728, is 1.

Now, the common factors can be found like this.

209:11x 19

639:3x 3x 71

969:3x 17x 19

728:2x 2x 2x 7x 13

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

3x 19 = 57

Therefore, the value for common factors is 57.

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 = 94211149032/(1x57)

LCM = 94211149032/57

LCM = 1652827176

Thus, we can understand that the LCM of 209,639,969,728 is 1652827176.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 209, 639, 969, 728

1. What is the LCM of 209, 639, 969, 728?

Answer: LCM of 209, 639, 969, 728 is 1652827176.

2. How to calculate the LCM of 209, 639, 969, 728?

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 209, 639, 969, 728.

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}.