LCM of 961, 217, 991, 770
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 961, 217, 991, 770 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 961, 217, 991, 770. So, keep reading to learn more.
Given numbers are 961,217,991,770
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 961,217,991,770 is 733310270.
Find LCM of 961,217,991,770 with Prime Factorization
| 7 | 961, 217, 991, 770 |
| 31 | 961, 31, 991, 110 |
| 1, 31, 991, 110 |
Multiply the prime numbers at the bottom and the left side.
7 x 31 x 1 x 31 x 991 x 110 = 733310270
Therefore, the lowest common multiple of 961,217,991,770 is 733310270.
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.
961 x 217 x 991 x 770 = 159128328590
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.
961 : 1, 31, 961
217 : 1, 7, 31, 217
991 : 1, 991
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 961,217,991,770, is 1.
Now, the common factors can be found like this.
961:31x 31
217:7x 31
991:991
770:2x 5x 7x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 31 = 217
Therefore, the value for common factors is 217.
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 = 159128328590/(1x217)
LCM = 159128328590/217
LCM = 733310270
Thus, we can understand that the LCM of 961,217,991,770 is 733310270.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 961, 217, 991, 770
1. What is the LCM of 961, 217, 991, 770?
Answer: LCM of 961, 217, 991, 770 is 733310270.
2. How to calculate the LCM of 961, 217, 991, 770?
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 961, 217, 991, 770.
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}.