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LCM of 781, 989, 618, 939, 816

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


Find the LCM of 781, 989, 618, 939, 816 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 781, 989, 618, 939, 816. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 781,989,618,939,816

Given numbers are 781,989,618,939,816

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

The LCM of 781,989,618,939,816 is 20319782100816.

Find LCM of 781,989,618,939,816 with Prime Factorization


2 781, 989, 618, 939, 816
3 781, 989, 309, 939, 408
781, 989, 103, 313, 136

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

2 x 3 x 781 x 989 x 103 x 313 x 136 = 20319782100816

Therefore, the lowest common multiple of 781,989,618,939,816 is 20319782100816.

LCM Formula to Find Lowest Common Multiple of 781,989,618,939,816

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.

781 x 989 x 618 x 939 x 816 = 365756077814688

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.

781 : 1, 11, 71, 781

989 : 1, 23, 43, 989

618 : 1, 2, 3, 6, 103, 206, 309, 618

939 : 1, 3, 313, 939

816 : 1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,989,618,939,816, is 1.

Now, the common factors can be found like this.

781:11x 71

989:23x 43

618:2x 3x 103

939:3x 313

816:2x 2x 2x 2x 3x 17

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

2x 3x 3 = 18

Therefore, the value for common factors is 18.

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 = 365756077814688/(1x18)

LCM = 365756077814688/18

LCM = 20319782100816

Thus, we can understand that the LCM of 781,989,618,939,816 is 20319782100816.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 781, 989, 618, 939, 816

1. What is the LCM of 781, 989, 618, 939, 816?

Answer: LCM of 781, 989, 618, 939, 816 is 20319782100816.

2. How to calculate the LCM of 781, 989, 618, 939, 816?

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 781, 989, 618, 939, 816.

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}.