LCM of 3 Numbers Calculator LCM of 4 Numbers Calculator LCM of 5 Numbers Calculator LCD Calculator How to find LCM LCM and HCF Questions Least Common Denominator Calculator Greatest Common Divisor Calculator HCF Calculator HCF of 3 Numbers Calculator HCF of 4 Numbers Calculator GCD Calculator Greatest Common Factor Calculator Least Common Multiple Calculator Common Factors Calculator

LCM of 720, 738, 297, 686

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


Find the LCM of 720, 738, 297, 686 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 720, 738, 297, 686. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 720,738,297,686

Given numbers are 720,738,297,686

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

The LCM of 720,738,297,686 is 334136880.

Find LCM of 720,738,297,686 with Prime Factorization


2 720, 738, 297, 686
3 360, 369, 297, 343
3 120, 123, 99, 343
40, 41, 33, 343

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

2 x 3 x 3 x 40 x 41 x 33 x 343 = 334136880

Therefore, the lowest common multiple of 720,738,297,686 is 334136880.

LCM Formula to Find Lowest Common Multiple of 720,738,297,686

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.

720 x 738 x 297 x 686 = 108260349120

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.

720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

738 : 1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738

297 : 1, 3, 9, 11, 27, 33, 99, 297

686 : 1, 2, 7, 14, 49, 98, 343, 686

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,738,297,686, is 1.

Now, the common factors can be found like this.

720:2x 2x 2x 2x 3x 3x 5

738:2x 3x 3x 41

297:3x 3x 3x 11

686:2x 7x 7x 7

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 3x 3x 3x 3 = 324

Therefore, the value for common factors is 324.

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 = 108260349120/(1x324)

LCM = 108260349120/324

LCM = 334136880

Thus, we can understand that the LCM of 720,738,297,686 is 334136880.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 720, 738, 297, 686

1. What is the LCM of 720, 738, 297, 686?

Answer: LCM of 720, 738, 297, 686 is 334136880.

2. How to calculate the LCM of 720, 738, 297, 686?

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 720, 738, 297, 686.

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}.