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LCM of 644, 695, 964, 205

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


Find the LCM of 644, 695, 964, 205 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 644, 695, 964, 205. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 644,695,964,205

Given numbers are 644,695,964,205

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

The LCM of 644,695,964,205 is 4422537980.

Find LCM of 644,695,964,205 with Prime Factorization


2 644, 695, 964, 205
2 322, 695, 482, 205
5 161, 695, 241, 205
161, 139, 241, 41

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

2 x 2 x 5 x 161 x 139 x 241 x 41 = 4422537980

Therefore, the lowest common multiple of 644,695,964,205 is 4422537980.

LCM Formula to Find Lowest Common Multiple of 644,695,964,205

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.

644 x 695 x 964 x 205 = 88450759600

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.

644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

695 : 1, 5, 139, 695

964 : 1, 2, 4, 241, 482, 964

205 : 1, 5, 41, 205

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,695,964,205, is 1.

Now, the common factors can be found like this.

644:2x 2x 7x 23

695:5x 139

964:2x 2x 241

205:5x 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 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 = 88450759600/(1x20)

LCM = 88450759600/20

LCM = 4422537980

Thus, we can understand that the LCM of 644,695,964,205 is 4422537980.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 644, 695, 964, 205

1. What is the LCM of 644, 695, 964, 205?

Answer: LCM of 644, 695, 964, 205 is 4422537980.

2. How to calculate the LCM of 644, 695, 964, 205?

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 644, 695, 964, 205.

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}.