LCM of 351, 638, 418, 715
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 351, 638, 418, 715 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 351, 638, 418, 715. So, keep reading to learn more.
Given numbers are 351,638,418,715
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 351,638,418,715 is 21274110.
Find LCM of 351,638,418,715 with Prime Factorization
| 2 | 351, 638, 418, 715 |
| 11 | 351, 319, 209, 715 |
| 13 | 351, 29, 19, 65 |
| 27, 29, 19, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 13 x 27 x 29 x 19 x 5 = 21274110
Therefore, the lowest common multiple of 351,638,418,715 is 21274110.
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.
351 x 638 x 418 x 715 = 66928350060
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.
351 : 1, 3, 9, 13, 27, 39, 117, 351
638 : 1, 2, 11, 22, 29, 58, 319, 638
418 : 1, 2, 11, 19, 22, 38, 209, 418
715 : 1, 5, 11, 13, 55, 65, 143, 715
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 351,638,418,715, is 1.
Now, the common factors can be found like this.
351:3x 3x 3x 13
638:2x 11x 29
418:2x 11x 19
715:5x 11x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11x 11x 13 = 3146
Therefore, the value for common factors is 3146.
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 = 66928350060/(1x3146)
LCM = 66928350060/3146
LCM = 21274110
Thus, we can understand that the LCM of 351,638,418,715 is 21274110.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 351, 638, 418, 715
1. What is the LCM of 351, 638, 418, 715?
Answer: LCM of 351, 638, 418, 715 is 21274110.
2. How to calculate the LCM of 351, 638, 418, 715?
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 351, 638, 418, 715.
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}.