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LCM of 862, 128, 749, 987

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


Find the LCM of 862, 128, 749, 987 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 862, 128, 749, 987. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 862,128,749,987

Given numbers are 862,128,749,987

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

The LCM of 862,128,749,987 is 5826237312.

Find LCM of 862,128,749,987 with Prime Factorization


2 862, 128, 749, 987
7 431, 64, 749, 987
431, 64, 107, 141

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

2 x 7 x 431 x 64 x 107 x 141 = 5826237312

Therefore, the lowest common multiple of 862,128,749,987 is 5826237312.

LCM Formula to Find Lowest Common Multiple of 862,128,749,987

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.

862 x 128 x 749 x 987 = 81567322368

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.

862 : 1, 2, 431, 862

128 : 1, 2, 4, 8, 16, 32, 64, 128

749 : 1, 7, 107, 749

987 : 1, 3, 7, 21, 47, 141, 329, 987

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 862,128,749,987, is 1.

Now, the common factors can be found like this.

862:2x 431

128:2x 2x 2x 2x 2x 2x 2

749:7x 107

987:3x 7x 47

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

2x 7 = 14

Therefore, the value for common factors is 14.

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 = 81567322368/(1x14)

LCM = 81567322368/14

LCM = 5826237312

Thus, we can understand that the LCM of 862,128,749,987 is 5826237312.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 862, 128, 749, 987

1. What is the LCM of 862, 128, 749, 987?

Answer: LCM of 862, 128, 749, 987 is 5826237312.

2. How to calculate the LCM of 862, 128, 749, 987?

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 862, 128, 749, 987.

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}.