LCM of 724, 858, 705, 691, 891
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 724, 858, 705, 691, 891 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 724, 858, 705, 691, 891. So, keep reading to learn more.
Given numbers are 724,858,705,691,891
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 724,858,705,691,891 is 1361775549420.
Find LCM of 724,858,705,691,891 with Prime Factorization
| 2 | 724, 858, 705, 691, 891 |
| 3 | 362, 429, 705, 691, 891 |
| 11 | 362, 143, 235, 691, 297 |
| 362, 13, 235, 691, 27 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 362 x 13 x 235 x 691 x 27 = 1361775549420
Therefore, the lowest common multiple of 724,858,705,691,891 is 1361775549420.
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.
724 x 858 x 705 x 691 x 891 = 269631558785160
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.
724 : 1, 2, 4, 181, 362, 724
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
705 : 1, 3, 5, 15, 47, 141, 235, 705
691 : 1, 691
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 724,858,705,691,891, is 1.
Now, the common factors can be found like this.
724:2x 2x 181
858:2x 3x 11x 13
705:3x 5x 47
691:691
891:3x 3x 3x 3x 11
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 3x 11 = 198
Therefore, the value for common factors is 198.
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 = 269631558785160/(1x198)
LCM = 269631558785160/198
LCM = 1361775549420
Thus, we can understand that the LCM of 724,858,705,691,891 is 1361775549420.
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FAQs on LCM of 724, 858, 705, 691, 891
1. What is the LCM of 724, 858, 705, 691, 891?
Answer: LCM of 724, 858, 705, 691, 891 is 1361775549420.
2. How to calculate the LCM of 724, 858, 705, 691, 891?
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 724, 858, 705, 691, 891.
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}.