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LCM of 661, 989, 880, 742

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


Find the LCM of 661, 989, 880, 742 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 661, 989, 880, 742. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 661,989,880,742

Given numbers are 661,989,880,742

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

The LCM of 661,989,880,742 is 213429443920.

Find LCM of 661,989,880,742 with Prime Factorization


2 661, 989, 880, 742
661, 989, 440, 371

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

2 x 661 x 989 x 440 x 371 = 213429443920

Therefore, the lowest common multiple of 661,989,880,742 is 213429443920.

LCM Formula to Find Lowest Common Multiple of 661,989,880,742

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.

661 x 989 x 880 x 742 = 426858887840

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.

661 : 1, 661

989 : 1, 23, 43, 989

880 : 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880

742 : 1, 2, 7, 14, 53, 106, 371, 742

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 661,989,880,742, is 1.

Now, the common factors can be found like this.

661:661

989:23x 43

880:2x 2x 2x 2x 5x 11

742:2x 7x 53

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 = 426858887840/(1x2)

LCM = 426858887840/2

LCM = 213429443920

Thus, we can understand that the LCM of 661,989,880,742 is 213429443920.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 661, 989, 880, 742

1. What is the LCM of 661, 989, 880, 742?

Answer: LCM of 661, 989, 880, 742 is 213429443920.

2. How to calculate the LCM of 661, 989, 880, 742?

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 661, 989, 880, 742.

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}.