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LCM of 289, 558, 221, 780

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


Find the LCM of 289, 558, 221, 780 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 289, 558, 221, 780. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 289,558,221,780

Given numbers are 289,558,221,780

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

The LCM of 289,558,221,780 is 20964060.

Find LCM of 289,558,221,780 with Prime Factorization


2 289, 558, 221, 780
3 289, 279, 221, 390
13 289, 93, 221, 130
17 289, 93, 17, 10
1, 93, 17, 10

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

2 x 3 x 13 x 17 x 1 x 93 x 17 x 10 = 20964060

Therefore, the lowest common multiple of 289,558,221,780 is 20964060.

LCM Formula to Find Lowest Common Multiple of 289,558,221,780

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.

289 x 558 x 221 x 780 = 27798343560

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.

289 : 1, 17, 289

558 : 1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558

221 : 1, 13, 17, 221

780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 289,558,221,780, is 1.

Now, the common factors can be found like this.

289:17x 17

558:2x 3x 3x 31

221:13x 17

780:2x 2x 3x 5x 13

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 13x 17 = 1326

Therefore, the value for common factors is 1326.

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 = 27798343560/(1x1326)

LCM = 27798343560/1326

LCM = 20964060

Thus, we can understand that the LCM of 289,558,221,780 is 20964060.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 289, 558, 221, 780

1. What is the LCM of 289, 558, 221, 780?

Answer: LCM of 289, 558, 221, 780 is 20964060.

2. How to calculate the LCM of 289, 558, 221, 780?

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 289, 558, 221, 780.

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}.