LCM of 242, 138, 620, 961
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 242, 138, 620, 961 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 242, 138, 620, 961. So, keep reading to learn more.
Given numbers are 242,138,620,961
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 242,138,620,961 is 160467780.
Find LCM of 242,138,620,961 with Prime Factorization
| 2 | 242, 138, 620, 961 |
| 31 | 121, 69, 310, 961 |
| 121, 69, 10, 31 |
Multiply the prime numbers at the bottom and the left side.
2 x 31 x 121 x 69 x 10 x 31 = 160467780
Therefore, the lowest common multiple of 242,138,620,961 is 160467780.
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.
242 x 138 x 620 x 961 = 19898004720
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.
242 : 1, 2, 11, 22, 121, 242
138 : 1, 2, 3, 6, 23, 46, 69, 138
620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
961 : 1, 31, 961
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 242,138,620,961, is 1.
Now, the common factors can be found like this.
242:2x 11x 11
138:2x 3x 23
620:2x 2x 5x 31
961:31x 31
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 31 = 124
Therefore, the value for common factors is 124.
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 = 19898004720/(1x124)
LCM = 19898004720/124
LCM = 160467780
Thus, we can understand that the LCM of 242,138,620,961 is 160467780.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 242, 138, 620, 961
1. What is the LCM of 242, 138, 620, 961?
Answer: LCM of 242, 138, 620, 961 is 160467780.
2. How to calculate the LCM of 242, 138, 620, 961?
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 242, 138, 620, 961.
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}.