LCM of 678, 380, 791, 309
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 678, 380, 791, 309 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 678, 380, 791, 309. So, keep reading to learn more.
Given numbers are 678,380,791,309
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 678,380,791,309 is 92879220.
Find LCM of 678,380,791,309 with Prime Factorization
| 2 | 678, 380, 791, 309 |
| 3 | 339, 190, 791, 309 |
| 113 | 113, 190, 791, 103 |
| 1, 190, 7, 103 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 113 x 1 x 190 x 7 x 103 = 92879220
Therefore, the lowest common multiple of 678,380,791,309 is 92879220.
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.
678 x 380 x 791 x 309 = 62972111160
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.
678 : 1, 2, 3, 6, 113, 226, 339, 678
380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
791 : 1, 7, 113, 791
309 : 1, 3, 103, 309
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 678,380,791,309, is 1.
Now, the common factors can be found like this.
678:2x 3x 113
380:2x 2x 5x 19
791:7x 113
309:3x 103
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 113 = 678
Therefore, the value for common factors is 678.
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 = 62972111160/(1x678)
LCM = 62972111160/678
LCM = 92879220
Thus, we can understand that the LCM of 678,380,791,309 is 92879220.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 678, 380, 791, 309
1. What is the LCM of 678, 380, 791, 309?
Answer: LCM of 678, 380, 791, 309 is 92879220.
2. How to calculate the LCM of 678, 380, 791, 309?
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 678, 380, 791, 309.
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}.