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LCM of 791, 878, 905, 978

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


Find the LCM of 791, 878, 905, 978 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 791, 878, 905, 978. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 791,878,905,978

Given numbers are 791,878,905,978

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

The LCM of 791,878,905,978 is 307346617410.

Find LCM of 791,878,905,978 with Prime Factorization


2 791, 878, 905, 978
791, 439, 905, 489

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

2 x 791 x 439 x 905 x 489 = 307346617410

Therefore, the lowest common multiple of 791,878,905,978 is 307346617410.

LCM Formula to Find Lowest Common Multiple of 791,878,905,978

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.

791 x 878 x 905 x 978 = 614693234820

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.

791 : 1, 7, 113, 791

878 : 1, 2, 439, 878

905 : 1, 5, 181, 905

978 : 1, 2, 3, 6, 163, 326, 489, 978

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 791,878,905,978, is 1.

Now, the common factors can be found like this.

791:7x 113

878:2x 439

905:5x 181

978:2x 3x 163

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 = 614693234820/(1x2)

LCM = 614693234820/2

LCM = 307346617410

Thus, we can understand that the LCM of 791,878,905,978 is 307346617410.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 791, 878, 905, 978

1. What is the LCM of 791, 878, 905, 978?

Answer: LCM of 791, 878, 905, 978 is 307346617410.

2. How to calculate the LCM of 791, 878, 905, 978?

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 791, 878, 905, 978.

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}.