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LCM of 420, 458, 390, 729

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


Find the LCM of 420, 458, 390, 729 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 420, 458, 390, 729. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 420,458,390,729

Given numbers are 420,458,390,729

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

The LCM of 420,458,390,729 is 303832620.

Find LCM of 420,458,390,729 with Prime Factorization


2 420, 458, 390, 729
3 210, 229, 195, 729
5 70, 229, 65, 243
14, 229, 13, 243

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

2 x 3 x 5 x 14 x 229 x 13 x 243 = 303832620

Therefore, the lowest common multiple of 420,458,390,729 is 303832620.

LCM Formula to Find Lowest Common Multiple of 420,458,390,729

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.

420 x 458 x 390 x 729 = 54689871600

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.

420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

458 : 1, 2, 229, 458

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

729 : 1, 3, 9, 27, 81, 243, 729

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,458,390,729, is 1.

Now, the common factors can be found like this.

420:2x 2x 3x 5x 7

458:2x 229

390:2x 3x 5x 13

729:3x 3x 3x 3x 3x 3

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 3x 3x 5 = 180

Therefore, the value for common factors is 180.

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 = 54689871600/(1x180)

LCM = 54689871600/180

LCM = 303832620

Thus, we can understand that the LCM of 420,458,390,729 is 303832620.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 420, 458, 390, 729

1. What is the LCM of 420, 458, 390, 729?

Answer: LCM of 420, 458, 390, 729 is 303832620.

2. How to calculate the LCM of 420, 458, 390, 729?

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 420, 458, 390, 729.

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}.