LCM of 579, 940, 861, 821, 705
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 579, 940, 861, 821, 705 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 579, 940, 861, 821, 705. So, keep reading to learn more.
Given numbers are 579,940,861,821,705
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 579,940,861,821,705 is 128242351020.
Find LCM of 579,940,861,821,705 with Prime Factorization
| 3 | 579, 940, 861, 821, 705 |
| 5 | 193, 940, 287, 821, 235 |
| 47 | 193, 188, 287, 821, 47 |
| 193, 4, 287, 821, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 47 x 193 x 4 x 287 x 821 x 1 = 128242351020
Therefore, the lowest common multiple of 579,940,861,821,705 is 128242351020.
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.
579 x 940 x 861 x 821 x 705 = 271232572407300
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.
579 : 1, 3, 193, 579
940 : 1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940
861 : 1, 3, 7, 21, 41, 123, 287, 861
821 : 1, 821
705 : 1, 3, 5, 15, 47, 141, 235, 705
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 579,940,861,821,705, is 1.
Now, the common factors can be found like this.
579:3x 193
940:2x 2x 5x 47
861:3x 7x 41
821:821
705:3x 5x 47
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 5x 47 = 2115
Therefore, the value for common factors is 2115.
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 = 271232572407300/(1x2115)
LCM = 271232572407300/2115
LCM = 128242351020
Thus, we can understand that the LCM of 579,940,861,821,705 is 128242351020.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 579, 940, 861, 821, 705
1. What is the LCM of 579, 940, 861, 821, 705?
Answer: LCM of 579, 940, 861, 821, 705 is 128242351020.
2. How to calculate the LCM of 579, 940, 861, 821, 705?
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 579, 940, 861, 821, 705.
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}.