LCM of 638, 353, 920, 353
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 638, 353, 920, 353 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 638, 353, 920, 353. So, keep reading to learn more.
Given numbers are 638,353,920,353
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 638,353,920,353 is 103598440.
Find LCM of 638,353,920,353 with Prime Factorization
| 2 | 638, 353, 920, 353 |
| 353 | 319, 353, 460, 353 |
| 319, 1, 460, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 353 x 319 x 1 x 460 x 1 = 103598440
Therefore, the lowest common multiple of 638,353,920,353 is 103598440.
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.
638 x 353 x 920 x 353 = 73140498640
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.
638 : 1, 2, 11, 22, 29, 58, 319, 638
353 : 1, 353
920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
353 : 1, 353
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,353,920,353, is 1.
Now, the common factors can be found like this.
638:2x 11x 29
353:353
920:2x 2x 2x 5x 23
353:353
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 353 = 706
Therefore, the value for common factors is 706.
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 = 73140498640/(1x706)
LCM = 73140498640/706
LCM = 103598440
Thus, we can understand that the LCM of 638,353,920,353 is 103598440.
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FAQs on LCM of 638, 353, 920, 353
1. What is the LCM of 638, 353, 920, 353?
Answer: LCM of 638, 353, 920, 353 is 103598440.
2. How to calculate the LCM of 638, 353, 920, 353?
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 638, 353, 920, 353.
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}.