LCM of 220, 981, 981, 689, 637
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 220, 981, 981, 689, 637 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 220, 981, 981, 689, 637. So, keep reading to learn more.
Given numbers are 220,981,981,689,637
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 220,981,981,689,637 is 7286299020.
Find LCM of 220,981,981,689,637 with Prime Factorization
| 3 | 220, 981, 981, 689, 637 |
| 3 | 220, 327, 327, 689, 637 |
| 13 | 220, 109, 109, 689, 637 |
| 109 | 220, 109, 109, 53, 49 |
| 220, 1, 1, 53, 49 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 13 x 109 x 220 x 1 x 1 x 53 x 49 = 7286299020
Therefore, the lowest common multiple of 220,981,981,689,637 is 7286299020.
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.
220 x 981 x 981 x 689 x 637 = 92922171402060
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.
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
981 : 1, 3, 9, 109, 327, 981
981 : 1, 3, 9, 109, 327, 981
689 : 1, 13, 53, 689
637 : 1, 7, 13, 49, 91, 637
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 220,981,981,689,637, is 1.
Now, the common factors can be found like this.
220:2x 2x 5x 11
981:3x 3x 109
981:3x 3x 109
689:13x 53
637:7x 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.
3x 3x 13x 109 = 12753
Therefore, the value for common factors is 12753.
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 = 92922171402060/(1x12753)
LCM = 92922171402060/12753
LCM = 7286299020
Thus, we can understand that the LCM of 220,981,981,689,637 is 7286299020.
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FAQs on LCM of 220, 981, 981, 689, 637
1. What is the LCM of 220, 981, 981, 689, 637?
Answer: LCM of 220, 981, 981, 689, 637 is 7286299020.
2. How to calculate the LCM of 220, 981, 981, 689, 637?
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 220, 981, 981, 689, 637.
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}.