LCM of 823, 688, 311, 823, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 823, 688, 311, 823, 645 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 823, 688, 311, 823, 645. So, keep reading to learn more.
Given numbers are 823,688,311,823,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 823,688,311,823,645 is 2641434960.
Find LCM of 823,688,311,823,645 with Prime Factorization
| 43 | 823, 688, 311, 823, 645 |
| 823 | 823, 16, 311, 823, 15 |
| 1, 16, 311, 1, 15 |
Multiply the prime numbers at the bottom and the left side.
43 x 823 x 1 x 16 x 311 x 1 x 15 = 2641434960
Therefore, the lowest common multiple of 823,688,311,823,645 is 2641434960.
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.
823 x 688 x 311 x 823 x 645 = 93477741799440
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.
823 : 1, 823
688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
311 : 1, 311
823 : 1, 823
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 823,688,311,823,645, is 1.
Now, the common factors can be found like this.
823:823
688:2x 2x 2x 2x 43
311:311
823:823
645:3x 5x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
43x 823 = 35389
Therefore, the value for common factors is 35389.
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 = 93477741799440/(1x35389)
LCM = 93477741799440/35389
LCM = 2641434960
Thus, we can understand that the LCM of 823,688,311,823,645 is 2641434960.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 823, 688, 311, 823, 645
1. What is the LCM of 823, 688, 311, 823, 645?
Answer: LCM of 823, 688, 311, 823, 645 is 2641434960.
2. How to calculate the LCM of 823, 688, 311, 823, 645?
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 823, 688, 311, 823, 645.
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}.