LCM of 657, 948, 638, 841
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 657, 948, 638, 841 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 657, 948, 638, 841. So, keep reading to learn more.
Given numbers are 657,948,638,841
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 657,948,638,841 is 1920618612.
Find LCM of 657,948,638,841 with Prime Factorization
| 2 | 657, 948, 638, 841 |
| 3 | 657, 474, 319, 841 |
| 29 | 219, 158, 319, 841 |
| 219, 158, 11, 29 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 29 x 219 x 158 x 11 x 29 = 1920618612
Therefore, the lowest common multiple of 657,948,638,841 is 1920618612.
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.
657 x 948 x 638 x 841 = 334187638488
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.
657 : 1, 3, 9, 73, 219, 657
948 : 1, 2, 3, 4, 6, 12, 79, 158, 237, 316, 474, 948
638 : 1, 2, 11, 22, 29, 58, 319, 638
841 : 1, 29, 841
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 657,948,638,841, is 1.
Now, the common factors can be found like this.
657:3x 3x 73
948:2x 2x 3x 79
638:2x 11x 29
841:29x 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 3x 29 = 174
Therefore, the value for common factors is 174.
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 = 334187638488/(1x174)
LCM = 334187638488/174
LCM = 1920618612
Thus, we can understand that the LCM of 657,948,638,841 is 1920618612.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 657, 948, 638, 841
1. What is the LCM of 657, 948, 638, 841?
Answer: LCM of 657, 948, 638, 841 is 1920618612.
2. How to calculate the LCM of 657, 948, 638, 841?
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 657, 948, 638, 841.
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}.