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LCM of 679, 776, 690, 643

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


Find the LCM of 679, 776, 690, 643 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 679, 776, 690, 643. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 679,776,690,643

Given numbers are 679,776,690,643

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

The LCM of 679,776,690,643 is 1205007720.

Find LCM of 679,776,690,643 with Prime Factorization


2 679, 776, 690, 643
97 679, 388, 345, 643
7, 4, 345, 643

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

2 x 97 x 7 x 4 x 345 x 643 = 1205007720

Therefore, the lowest common multiple of 679,776,690,643 is 1205007720.

LCM Formula to Find Lowest Common Multiple of 679,776,690,643

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.

679 x 776 x 690 x 643 = 233771497680

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.

679 : 1, 7, 97, 679

776 : 1, 2, 4, 8, 97, 194, 388, 776

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

643 : 1, 643

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 679,776,690,643, is 1.

Now, the common factors can be found like this.

679:7x 97

776:2x 2x 2x 97

690:2x 3x 5x 23

643:643

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

2x 97 = 194

Therefore, the value for common factors is 194.

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 = 233771497680/(1x194)

LCM = 233771497680/194

LCM = 1205007720

Thus, we can understand that the LCM of 679,776,690,643 is 1205007720.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 679, 776, 690, 643

1. What is the LCM of 679, 776, 690, 643?

Answer: LCM of 679, 776, 690, 643 is 1205007720.

2. How to calculate the LCM of 679, 776, 690, 643?

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 679, 776, 690, 643.

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}.