LCM of 770, 680, 731, 169
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 770, 680, 731, 169 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, 680, 731, 169. So, keep reading to learn more.
Given numbers are 770,680,731,169
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 770,680,731,169 is 380500120.
Find LCM of 770,680,731,169 with Prime Factorization
| 2 | 770, 680, 731, 169 |
| 5 | 385, 340, 731, 169 |
| 17 | 77, 68, 731, 169 |
| 77, 4, 43, 169 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 17 x 77 x 4 x 43 x 169 = 380500120
Therefore, the lowest common multiple of 770,680,731,169 is 380500120.
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 680 x 731 x 169 = 64685020400
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
680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
731 : 1, 17, 43, 731
169 : 1, 13, 169
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 770,680,731,169, is 1.
Now, the common factors can be found like this.
770:2x 5x 7x 11
680:2x 2x 2x 5x 17
731:17x 43
169:13x 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 5x 17 = 170
Therefore, the value for common factors is 170.
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 = 64685020400/(1x170)
LCM = 64685020400/170
LCM = 380500120
Thus, we can understand that the LCM of 770,680,731,169 is 380500120.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 770, 680, 731, 169
1. What is the LCM of 770, 680, 731, 169?
Answer: LCM of 770, 680, 731, 169 is 380500120.
2. How to calculate the LCM of 770, 680, 731, 169?
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, 680, 731, 169.
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}.