LCM of 861, 644, 943, 907
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 861, 644, 943, 907 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 861, 644, 943, 907. So, keep reading to learn more.
Given numbers are 861,644,943,907
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 861,644,943,907 is 71845284.
Find LCM of 861,644,943,907 with Prime Factorization
| 7 | 861, 644, 943, 907 |
| 23 | 123, 92, 943, 907 |
| 41 | 123, 4, 41, 907 |
| 3, 4, 1, 907 |
Multiply the prime numbers at the bottom and the left side.
7 x 23 x 41 x 3 x 4 x 1 x 907 = 71845284
Therefore, the lowest common multiple of 861,644,943,907 is 71845284.
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.
861 x 644 x 943 x 907 = 474250719684
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.
861 : 1, 3, 7, 21, 41, 123, 287, 861
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
943 : 1, 23, 41, 943
907 : 1, 907
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,644,943,907, is 1.
Now, the common factors can be found like this.
861:3x 7x 41
644:2x 2x 7x 23
943:23x 41
907:907
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 23x 41 = 6601
Therefore, the value for common factors is 6601.
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 = 474250719684/(1x6601)
LCM = 474250719684/6601
LCM = 71845284
Thus, we can understand that the LCM of 861,644,943,907 is 71845284.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 861, 644, 943, 907
1. What is the LCM of 861, 644, 943, 907?
Answer: LCM of 861, 644, 943, 907 is 71845284.
2. How to calculate the LCM of 861, 644, 943, 907?
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 861, 644, 943, 907.
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}.