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LCM of 755, 298, 688, 820

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


Find the LCM of 755, 298, 688, 820 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 755, 298, 688, 820. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 755,298,688,820

Given numbers are 755,298,688,820

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

The LCM of 755,298,688,820 is 3173258960.

Find LCM of 755,298,688,820 with Prime Factorization


2 755, 298, 688, 820
2 755, 149, 344, 410
5 755, 149, 172, 205
151, 149, 172, 41

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

2 x 2 x 5 x 151 x 149 x 172 x 41 = 3173258960

Therefore, the lowest common multiple of 755,298,688,820 is 3173258960.

LCM Formula to Find Lowest Common Multiple of 755,298,688,820

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.

755 x 298 x 688 x 820 = 126930358400

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.

755 : 1, 5, 151, 755

298 : 1, 2, 149, 298

688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688

820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 755,298,688,820, is 1.

Now, the common factors can be found like this.

755:5x 151

298:2x 149

688:2x 2x 2x 2x 43

820:2x 2x 5x 41

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 5 = 40

Therefore, the value for common factors is 40.

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 = 126930358400/(1x40)

LCM = 126930358400/40

LCM = 3173258960

Thus, we can understand that the LCM of 755,298,688,820 is 3173258960.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 755, 298, 688, 820

1. What is the LCM of 755, 298, 688, 820?

Answer: LCM of 755, 298, 688, 820 is 3173258960.

2. How to calculate the LCM of 755, 298, 688, 820?

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 755, 298, 688, 820.

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}.