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LCM of 181, 357, 390, 391

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


Find the LCM of 181, 357, 390, 391 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 181, 357, 390, 391. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 181,357,390,391

Given numbers are 181,357,390,391

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

The LCM of 181,357,390,391 is 193204830.

Find LCM of 181,357,390,391 with Prime Factorization


3 181, 357, 390, 391
17 181, 119, 130, 391
181, 7, 130, 23

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

3 x 17 x 181 x 7 x 130 x 23 = 193204830

Therefore, the lowest common multiple of 181,357,390,391 is 193204830.

LCM Formula to Find Lowest Common Multiple of 181,357,390,391

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.

181 x 357 x 390 x 391 = 9853446330

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.

181 : 1, 181

357 : 1, 3, 7, 17, 21, 51, 119, 357

390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

391 : 1, 17, 23, 391

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 181,357,390,391, is 1.

Now, the common factors can be found like this.

181:181

357:3x 7x 17

390:2x 3x 5x 13

391:17x 23

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

3x 17 = 51

Therefore, the value for common factors is 51.

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 = 9853446330/(1x51)

LCM = 9853446330/51

LCM = 193204830

Thus, we can understand that the LCM of 181,357,390,391 is 193204830.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 181, 357, 390, 391

1. What is the LCM of 181, 357, 390, 391?

Answer: LCM of 181, 357, 390, 391 is 193204830.

2. How to calculate the LCM of 181, 357, 390, 391?

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 181, 357, 390, 391.

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}.