LCM of 861, 921, 364, 581
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 861, 921, 364, 581 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, 921, 364, 581. So, keep reading to learn more.
Given numbers are 861,921,364,581
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 861,921,364,581 is 1140835332.
Find LCM of 861,921,364,581 with Prime Factorization
| 3 | 861, 921, 364, 581 |
| 7 | 287, 307, 364, 581 |
| 41, 307, 52, 83 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 41 x 307 x 52 x 83 = 1140835332
Therefore, the lowest common multiple of 861,921,364,581 is 1140835332.
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 921 x 364 x 581 = 167702793804
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
921 : 1, 3, 307, 921
364 : 1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364
581 : 1, 7, 83, 581
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,921,364,581, is 1.
Now, the common factors can be found like this.
861:3x 7x 41
921:3x 307
364:2x 2x 7x 13
581:7x 83
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 7 = 147
Therefore, the value for common factors is 147.
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 = 167702793804/(1x147)
LCM = 167702793804/147
LCM = 1140835332
Thus, we can understand that the LCM of 861,921,364,581 is 1140835332.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 861, 921, 364, 581
1. What is the LCM of 861, 921, 364, 581?
Answer: LCM of 861, 921, 364, 581 is 1140835332.
2. How to calculate the LCM of 861, 921, 364, 581?
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, 921, 364, 581.
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}.