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LCM of 861, 209, 181, 803, 172

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


Find the LCM of 861, 209, 181, 803, 172 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 861, 209, 181, 803, 172. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 861,209,181,803,172

Given numbers are 861,209,181,803,172

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

The LCM of 861,209,181,803,172 is 408958575564.

Find LCM of 861,209,181,803,172 with Prime Factorization


11 861, 209, 181, 803, 172
861, 19, 181, 73, 172

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

11 x 861 x 19 x 181 x 73 x 172 = 408958575564

Therefore, the lowest common multiple of 861,209,181,803,172 is 408958575564.

LCM Formula to Find Lowest Common Multiple of 861,209,181,803,172

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.

861 x 209 x 181 x 803 x 172 = 4498544331204

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.

861 : 1, 3, 7, 21, 41, 123, 287, 861

209 : 1, 11, 19, 209

181 : 1, 181

803 : 1, 11, 73, 803

172 : 1, 2, 4, 43, 86, 172

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,209,181,803,172, is 1.

Now, the common factors can be found like this.

861:3x 7x 41

209:11x 19

181:181

803:11x 73

172:2x 2x 43

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

11 = 11

Therefore, the value for common factors is 11.

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 = 4498544331204/(1x11)

LCM = 4498544331204/11

LCM = 408958575564

Thus, we can understand that the LCM of 861,209,181,803,172 is 408958575564.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 861, 209, 181, 803, 172

1. What is the LCM of 861, 209, 181, 803, 172?

Answer: LCM of 861, 209, 181, 803, 172 is 408958575564.

2. How to calculate the LCM of 861, 209, 181, 803, 172?

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 861, 209, 181, 803, 172.

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}.