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LCM of 980, 391, 392, 790

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


Find the LCM of 980, 391, 392, 790 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 980, 391, 392, 790. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 980,391,392,790

Given numbers are 980,391,392,790

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

The LCM of 980,391,392,790 is 60542440.

Find LCM of 980,391,392,790 with Prime Factorization


2 980, 391, 392, 790
2 490, 391, 196, 395
5 245, 391, 98, 395
7 49, 391, 98, 79
7 7, 391, 14, 79
1, 391, 2, 79

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

2 x 2 x 5 x 7 x 7 x 1 x 391 x 2 x 79 = 60542440

Therefore, the lowest common multiple of 980,391,392,790 is 60542440.

LCM Formula to Find Lowest Common Multiple of 980,391,392,790

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.

980 x 391 x 392 x 790 = 118663182400

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.

980 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980

391 : 1, 17, 23, 391

392 : 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392

790 : 1, 2, 5, 10, 79, 158, 395, 790

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 980,391,392,790, is 1.

Now, the common factors can be found like this.

980:2x 2x 5x 7x 7

391:17x 23

392:2x 2x 2x 7x 7

790:2x 5x 79

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

2x 2x 2x 5x 7x 7 = 1960

Therefore, the value for common factors is 1960.

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 = 118663182400/(1x1960)

LCM = 118663182400/1960

LCM = 60542440

Thus, we can understand that the LCM of 980,391,392,790 is 60542440.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 980, 391, 392, 790

1. What is the LCM of 980, 391, 392, 790?

Answer: LCM of 980, 391, 392, 790 is 60542440.

2. How to calculate the LCM of 980, 391, 392, 790?

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 980, 391, 392, 790.

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}.