LCM of 815, 731, 705, 272, 805
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 815, 731, 705, 272, 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 815, 731, 705, 272, 805. So, keep reading to learn more.
Given numbers are 815,731,705,272,805
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 815,731,705,272,805 is 216391380240.
Find LCM of 815,731,705,272,805 with Prime Factorization
| 5 | 815, 731, 705, 272, 805 |
| 17 | 163, 731, 141, 272, 161 |
| 163, 43, 141, 16, 161 |
Multiply the prime numbers at the bottom and the left side.
5 x 17 x 163 x 43 x 141 x 16 x 161 = 216391380240
Therefore, the lowest common multiple of 815,731,705,272,805 is 216391380240.
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.
815 x 731 x 705 x 272 x 805 = 91966336602000
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.
815 : 1, 5, 163, 815
731 : 1, 17, 43, 731
705 : 1, 3, 5, 15, 47, 141, 235, 705
272 : 1, 2, 4, 8, 16, 17, 34, 68, 136, 272
805 : 1, 5, 7, 23, 35, 115, 161, 805
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 815,731,705,272,805, is 1.
Now, the common factors can be found like this.
815:5x 163
731:17x 43
705:3x 5x 47
272:2x 2x 2x 2x 17
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 17 = 425
Therefore, the value for common factors is 425.
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 = 91966336602000/(1x425)
LCM = 91966336602000/425
LCM = 216391380240
Thus, we can understand that the LCM of 815,731,705,272,805 is 216391380240.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 815, 731, 705, 272, 805
1. What is the LCM of 815, 731, 705, 272, 805?
Answer: LCM of 815, 731, 705, 272, 805 is 216391380240.
2. How to calculate the LCM of 815, 731, 705, 272, 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 815, 731, 705, 272, 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}.