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 691, 842, 690, 340

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


Find the LCM of 691, 842, 690, 340 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 691, 842, 690, 340. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 691,842,690,340

Given numbers are 691,842,690,340

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

The LCM of 691,842,690,340 is 6824772060.

Find LCM of 691,842,690,340 with Prime Factorization


2 691, 842, 690, 340
5 691, 421, 345, 170
691, 421, 69, 34

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

2 x 5 x 691 x 421 x 69 x 34 = 6824772060

Therefore, the lowest common multiple of 691,842,690,340 is 6824772060.

LCM Formula to Find Lowest Common Multiple of 691,842,690,340

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.

691 x 842 x 690 x 340 = 136495441200

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.

691 : 1, 691

842 : 1, 2, 421, 842

690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 691,842,690,340, is 1.

Now, the common factors can be found like this.

691:691

842:2x 421

690:2x 3x 5x 23

340:2x 2x 5x 17

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 5 = 20

Therefore, the value for common factors is 20.

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 = 136495441200/(1x20)

LCM = 136495441200/20

LCM = 6824772060

Thus, we can understand that the LCM of 691,842,690,340 is 6824772060.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 691, 842, 690, 340

1. What is the LCM of 691, 842, 690, 340?

Answer: LCM of 691, 842, 690, 340 is 6824772060.

2. How to calculate the LCM of 691, 842, 690, 340?

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 691, 842, 690, 340.

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}.