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LCM of 840, 453, 754, 987

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


Find the LCM of 840, 453, 754, 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 840, 453, 754, 987. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 840,453,754,987

Given numbers are 840,453,754,987

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

The LCM of 840,453,754,987 is 2247477960.

Find LCM of 840,453,754,987 with Prime Factorization


2 840, 453, 754, 987
3 420, 453, 377, 987
7 140, 151, 377, 329
20, 151, 377, 47

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

2 x 3 x 7 x 20 x 151 x 377 x 47 = 2247477960

Therefore, the lowest common multiple of 840,453,754,987 is 2247477960.

LCM Formula to Find Lowest Common Multiple of 840,453,754,987

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.

840 x 453 x 754 x 987 = 283182222960

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.

840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

453 : 1, 3, 151, 453

754 : 1, 2, 13, 26, 29, 58, 377, 754

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 840,453,754,987, is 1.

Now, the common factors can be found like this.

840:2x 2x 2x 3x 5x 7

453:3x 151

754:2x 13x 29

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 3x 3x 7 = 126

Therefore, the value for common factors is 126.

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 = 283182222960/(1x126)

LCM = 283182222960/126

LCM = 2247477960

Thus, we can understand that the LCM of 840,453,754,987 is 2247477960.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 840, 453, 754, 987

1. What is the LCM of 840, 453, 754, 987?

Answer: LCM of 840, 453, 754, 987 is 2247477960.

2. How to calculate the LCM of 840, 453, 754, 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 840, 453, 754, 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}.