LCM of 455, 685, 910, 805
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 455, 685, 910, 805 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 455, 685, 910, 805. So, keep reading to learn more.
Given numbers are 455,685,910,805
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 455,685,910,805 is 2867410.
Find LCM of 455,685,910,805 with Prime Factorization
| 5 | 455, 685, 910, 805 |
| 7 | 91, 137, 182, 161 |
| 13 | 13, 137, 26, 23 |
| 1, 137, 2, 23 |
Multiply the prime numbers at the bottom and the left side.
5 x 7 x 13 x 1 x 137 x 2 x 23 = 2867410
Therefore, the lowest common multiple of 455,685,910,805 is 2867410.
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.
455 x 685 x 910 x 805 = 228317521250
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.
455 : 1, 5, 7, 13, 35, 65, 91, 455
685 : 1, 5, 137, 685
910 : 1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910
805 : 1, 5, 7, 23, 35, 115, 161, 805
5 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 455,685,910,805, is 5.
Now, the common factors can be found like this.
455:5x 7x 13
685:5x 137
910:2x 5x 7x 13
805:5x 7x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 5x 7x 7x 13 = 15925
Therefore, the value for common factors is 15925.
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 = 228317521250/(5x15925)
LCM = 228317521250/79625
LCM = 2867410
Thus, we can understand that the LCM of 455,685,910,805 is 2867410.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 455, 685, 910, 805
1. What is the LCM of 455, 685, 910, 805?
Answer: LCM of 455, 685, 910, 805 is 2867410.
2. How to calculate the LCM of 455, 685, 910, 805?
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 455, 685, 910, 805.
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}.