LCM of 431, 220, 572, 638, 343
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 431, 220, 572, 638, 343 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 431, 220, 572, 638, 343. So, keep reading to learn more.
Given numbers are 431,220,572,638,343
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 431,220,572,638,343 is 12261269020.
Find LCM of 431,220,572,638,343 with Prime Factorization
| 2 | 431, 220, 572, 638, 343 |
| 2 | 431, 110, 286, 319, 343 |
| 11 | 431, 55, 143, 319, 343 |
| 431, 5, 13, 29, 343 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 11 x 431 x 5 x 13 x 29 x 343 = 12261269020
Therefore, the lowest common multiple of 431,220,572,638,343 is 12261269020.
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.
431 x 220 x 572 x 638 x 343 = 11868908411360
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.
431 : 1, 431
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
572 : 1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572
638 : 1, 2, 11, 22, 29, 58, 319, 638
343 : 1, 7, 49, 343
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 431,220,572,638,343, is 1.
Now, the common factors can be found like this.
431:431
220:2x 2x 5x 11
572:2x 2x 11x 13
638:2x 11x 29
343:7x 7x 7
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 2x 11x 11 = 968
Therefore, the value for common factors is 968.
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 = 11868908411360/(1x968)
LCM = 11868908411360/968
LCM = 12261269020
Thus, we can understand that the LCM of 431,220,572,638,343 is 12261269020.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 431, 220, 572, 638, 343
1. What is the LCM of 431, 220, 572, 638, 343?
Answer: LCM of 431, 220, 572, 638, 343 is 12261269020.
2. How to calculate the LCM of 431, 220, 572, 638, 343?
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 431, 220, 572, 638, 343.
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}.