LCM of 770, 102, 221, 165
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 770, 102, 221, 165 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 770, 102, 221, 165. So, keep reading to learn more.
Given numbers are 770,102,221,165
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 770,102,221,165 is 510510.
Find LCM of 770,102,221,165 with Prime Factorization
| 2 | 770, 102, 221, 165 |
| 3 | 385, 51, 221, 165 |
| 5 | 385, 17, 221, 55 |
| 11 | 77, 17, 221, 11 |
| 17 | 7, 17, 221, 1 |
| 7, 1, 13, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 11 x 17 x 7 x 1 x 13 x 1 = 510510
Therefore, the lowest common multiple of 770,102,221,165 is 510510.
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.
770 x 102 x 221 x 165 = 2863961100
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.
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
102 : 1, 2, 3, 6, 17, 34, 51, 102
221 : 1, 13, 17, 221
165 : 1, 3, 5, 11, 15, 33, 55, 165
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 770,102,221,165, is 1.
Now, the common factors can be found like this.
770:2x 5x 7x 11
102:2x 3x 17
221:13x 17
165:3x 5x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 5x 11x 17 = 5610
Therefore, the value for common factors is 5610.
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 = 2863961100/(1x5610)
LCM = 2863961100/5610
LCM = 510510
Thus, we can understand that the LCM of 770,102,221,165 is 510510.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 770, 102, 221, 165
1. What is the LCM of 770, 102, 221, 165?
Answer: LCM of 770, 102, 221, 165 is 510510.
2. How to calculate the LCM of 770, 102, 221, 165?
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 770, 102, 221, 165.
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}.