LCM of 137, 689, 668, 663, 728
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 137, 689, 668, 663, 728 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 137, 689, 668, 663, 728. So, keep reading to learn more.
Given numbers are 137,689,668,663,728
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 137,689,668,663,728 is 45020930136.
Find LCM of 137,689,668,663,728 with Prime Factorization
| 2 | 137, 689, 668, 663, 728 |
| 2 | 137, 689, 334, 663, 364 |
| 13 | 137, 689, 167, 663, 182 |
| 137, 53, 167, 51, 14 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 13 x 137 x 53 x 167 x 51 x 14 = 45020930136
Therefore, the lowest common multiple of 137,689,668,663,728 is 45020930136.
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.
137 x 689 x 668 x 663 x 728 = 30434148771936
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.
137 : 1, 137
689 : 1, 13, 53, 689
668 : 1, 2, 4, 167, 334, 668
663 : 1, 3, 13, 17, 39, 51, 221, 663
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 137,689,668,663,728, is 1.
Now, the common factors can be found like this.
137:137
689:13x 53
668:2x 2x 167
663:3x 13x 17
728:2x 2x 2x 7x 13
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 13x 13 = 676
Therefore, the value for common factors is 676.
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 = 30434148771936/(1x676)
LCM = 30434148771936/676
LCM = 45020930136
Thus, we can understand that the LCM of 137,689,668,663,728 is 45020930136.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 137, 689, 668, 663, 728
1. What is the LCM of 137, 689, 668, 663, 728?
Answer: LCM of 137, 689, 668, 663, 728 is 45020930136.
2. How to calculate the LCM of 137, 689, 668, 663, 728?
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 137, 689, 668, 663, 728.
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}.