LCM of 846, 645, 640, 687, 909
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 846, 645, 640, 687, 909 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 846, 645, 640, 687, 909. So, keep reading to learn more.
Given numbers are 846,645,640,687,909
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 846,645,640,687,909 is 269243763840.
Find LCM of 846,645,640,687,909 with Prime Factorization
| 2 | 846, 645, 640, 687, 909 |
| 3 | 423, 645, 320, 687, 909 |
| 3 | 141, 215, 320, 229, 303 |
| 5 | 47, 215, 320, 229, 101 |
| 47, 43, 64, 229, 101 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 5 x 47 x 43 x 64 x 229 x 101 = 269243763840
Therefore, the lowest common multiple of 846,645,640,687,909 is 269243763840.
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.
846 x 645 x 640 x 687 x 909 = 218087448710400
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.
846 : 1, 2, 3, 6, 9, 18, 47, 94, 141, 282, 423, 846
645 : 1, 3, 5, 15, 43, 129, 215, 645
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
687 : 1, 3, 229, 687
909 : 1, 3, 9, 101, 303, 909
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 846,645,640,687,909, is 1.
Now, the common factors can be found like this.
846:2x 3x 3x 47
645:3x 5x 43
640:2x 2x 2x 2x 2x 2x 2x 5
687:3x 229
909:3x 3x 101
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 3x 3x 5 = 810
Therefore, the value for common factors is 810.
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 = 218087448710400/(1x810)
LCM = 218087448710400/810
LCM = 269243763840
Thus, we can understand that the LCM of 846,645,640,687,909 is 269243763840.
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FAQs on LCM of 846, 645, 640, 687, 909
1. What is the LCM of 846, 645, 640, 687, 909?
Answer: LCM of 846, 645, 640, 687, 909 is 269243763840.
2. How to calculate the LCM of 846, 645, 640, 687, 909?
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 846, 645, 640, 687, 909.
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}.