LCM of 820, 131, 340, 745, 891
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 820, 131, 340, 745, 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 820, 131, 340, 745, 891. So, keep reading to learn more.
Given numbers are 820,131,340,745,891
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 820,131,340,745,891 is 242436520260.
Find LCM of 820,131,340,745,891 with Prime Factorization
| 2 | 820, 131, 340, 745, 891 |
| 2 | 410, 131, 170, 745, 891 |
| 5 | 205, 131, 85, 745, 891 |
| 41, 131, 17, 149, 891 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 41 x 131 x 17 x 149 x 891 = 242436520260
Therefore, the lowest common multiple of 820,131,340,745,891 is 242436520260.
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.
820 x 131 x 340 x 745 x 891 = 24243652026000
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.
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
131 : 1, 131
340 : 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340
745 : 1, 5, 149, 745
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 820,131,340,745,891, is 1.
Now, the common factors can be found like this.
820:2x 2x 5x 41
131:131
340:2x 2x 5x 17
745:5x 149
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 2x 5x 5 = 100
Therefore, the value for common factors is 100.
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 = 24243652026000/(1x100)
LCM = 24243652026000/100
LCM = 242436520260
Thus, we can understand that the LCM of 820,131,340,745,891 is 242436520260.
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FAQs on LCM of 820, 131, 340, 745, 891
1. What is the LCM of 820, 131, 340, 745, 891?
Answer: LCM of 820, 131, 340, 745, 891 is 242436520260.
2. How to calculate the LCM of 820, 131, 340, 745, 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 820, 131, 340, 745, 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}.