LCM of 720, 951, 309, 138, 538
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 720, 951, 309, 138, 538 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 720, 951, 309, 138, 538. So, keep reading to learn more.
Given numbers are 720,951,309,138,538
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 720,951,309,138,538 is 145448450640.
Find LCM of 720,951,309,138,538 with Prime Factorization
| 2 | 720, 951, 309, 138, 538 |
| 3 | 360, 951, 309, 69, 269 |
| 120, 317, 103, 23, 269 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 120 x 317 x 103 x 23 x 269 = 145448450640
Therefore, the lowest common multiple of 720,951,309,138,538 is 145448450640.
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.
720 x 951 x 309 x 138 x 538 = 15708432669120
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.
720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
951 : 1, 3, 317, 951
309 : 1, 3, 103, 309
138 : 1, 2, 3, 6, 23, 46, 69, 138
538 : 1, 2, 269, 538
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 720,951,309,138,538, is 1.
Now, the common factors can be found like this.
720:2x 2x 2x 2x 3x 3x 5
951:3x 317
309:3x 103
138:2x 3x 23
538:2x 269
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 3x 3x 3 = 108
Therefore, the value for common factors is 108.
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 = 15708432669120/(1x108)
LCM = 15708432669120/108
LCM = 145448450640
Thus, we can understand that the LCM of 720,951,309,138,538 is 145448450640.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 720, 951, 309, 138, 538
1. What is the LCM of 720, 951, 309, 138, 538?
Answer: LCM of 720, 951, 309, 138, 538 is 145448450640.
2. How to calculate the LCM of 720, 951, 309, 138, 538?
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 720, 951, 309, 138, 538.
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}.