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LCM of 289, 420, 932, 638

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


Find the LCM of 289, 420, 932, 638 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 289, 420, 932, 638. So, keep reading to learn more.

 

LCM of:

Calculate the LCM of 289,420,932,638

Given numbers are 289,420,932,638

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

The LCM of 289,420,932,638 is 9021811260.

Find LCM of 289,420,932,638 with Prime Factorization


2 289, 420, 932, 638
2 289, 210, 466, 319
289, 105, 233, 319

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

2 x 2 x 289 x 105 x 233 x 319 = 9021811260

Therefore, the lowest common multiple of 289,420,932,638 is 9021811260.

LCM Formula to Find Lowest Common Multiple of 289,420,932,638

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.

289 x 420 x 932 x 638 = 72174490080

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.

289 : 1, 17, 289

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

932 : 1, 2, 4, 233, 466, 932

638 : 1, 2, 11, 22, 29, 58, 319, 638

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 289,420,932,638, is 1.

Now, the common factors can be found like this.

289:17x 17

420:2x 2x 3x 5x 7

932:2x 2x 233

638:2x 11x 29

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 2 = 8

Therefore, the value for common factors is 8.

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 = 72174490080/(1x8)

LCM = 72174490080/8

LCM = 9021811260

Thus, we can understand that the LCM of 289,420,932,638 is 9021811260.

LCM of two or more Numbers Calculation Examples

FAQs on LCM of 289, 420, 932, 638

1. What is the LCM of 289, 420, 932, 638?

Answer: LCM of 289, 420, 932, 638 is 9021811260.

2. How to calculate the LCM of 289, 420, 932, 638?

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 289, 420, 932, 638.

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}.