LCM of 805, 838, 774, 742
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 805, 838, 774, 742 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 805, 838, 774, 742. So, keep reading to learn more.
Given numbers are 805,838,774,742
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 805,838,774,742 is 13836515490.
Find LCM of 805,838,774,742 with Prime Factorization
| 2 | 805, 838, 774, 742 |
| 7 | 805, 419, 387, 371 |
| 115, 419, 387, 53 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 115 x 419 x 387 x 53 = 13836515490
Therefore, the lowest common multiple of 805,838,774,742 is 13836515490.
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.
805 x 838 x 774 x 742 = 387422433720
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.
805 : 1, 5, 7, 23, 35, 115, 161, 805
838 : 1, 2, 419, 838
774 : 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774
742 : 1, 2, 7, 14, 53, 106, 371, 742
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 805,838,774,742, is 1.
Now, the common factors can be found like this.
805:5x 7x 23
838:2x 419
774:2x 3x 3x 43
742:2x 7x 53
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 7 = 28
Therefore, the value for common factors is 28.
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 = 387422433720/(1x28)
LCM = 387422433720/28
LCM = 13836515490
Thus, we can understand that the LCM of 805,838,774,742 is 13836515490.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 805, 838, 774, 742
1. What is the LCM of 805, 838, 774, 742?
Answer: LCM of 805, 838, 774, 742 is 13836515490.
2. How to calculate the LCM of 805, 838, 774, 742?
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 805, 838, 774, 742.
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}.