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LCM of 128, 178, 633, 687, 555

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


Find the LCM of 128, 178, 633, 687, 555 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 128, 178, 633, 687, 555. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 128,178,633,687,555

Given numbers are 128,178,633,687,555

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

The LCM of 128,178,633,687,555 is 305499776640.

Find LCM of 128,178,633,687,555 with Prime Factorization


2 128, 178, 633, 687, 555
3 64, 89, 633, 687, 555
64, 89, 211, 229, 185

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

2 x 3 x 64 x 89 x 211 x 229 x 185 = 305499776640

Therefore, the lowest common multiple of 128,178,633,687,555 is 305499776640.

LCM Formula to Find Lowest Common Multiple of 128,178,633,687,555

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.

128 x 178 x 633 x 687 x 555 = 5498995979520

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.

128 : 1, 2, 4, 8, 16, 32, 64, 128

178 : 1, 2, 89, 178

633 : 1, 3, 211, 633

687 : 1, 3, 229, 687

555 : 1, 3, 5, 15, 37, 111, 185, 555

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 128,178,633,687,555, is 1.

Now, the common factors can be found like this.

128:2x 2x 2x 2x 2x 2x 2

178:2x 89

633:3x 211

687:3x 229

555:3x 5x 37

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

2x 3x 3 = 18

Therefore, the value for common factors is 18.

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 = 5498995979520/(1x18)

LCM = 5498995979520/18

LCM = 305499776640

Thus, we can understand that the LCM of 128,178,633,687,555 is 305499776640.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 128, 178, 633, 687, 555

1. What is the LCM of 128, 178, 633, 687, 555?

Answer: LCM of 128, 178, 633, 687, 555 is 305499776640.

2. How to calculate the LCM of 128, 178, 633, 687, 555?

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 128, 178, 633, 687, 555.

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}.