LCM of 124, 678, 744, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 124, 678, 744, 561 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 124, 678, 744, 561. So, keep reading to learn more.
Given numbers are 124,678,744,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 124,678,744,561 is 15721464.
Find LCM of 124,678,744,561 with Prime Factorization
| 2 | 124, 678, 744, 561 |
| 2 | 62, 339, 372, 561 |
| 3 | 31, 339, 186, 561 |
| 31 | 31, 113, 62, 187 |
| 1, 113, 2, 187 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 31 x 1 x 113 x 2 x 187 = 15721464
Therefore, the lowest common multiple of 124,678,744,561 is 15721464.
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.
124 x 678 x 744 x 561 = 35090307648
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.
124 : 1, 2, 4, 31, 62, 124
678 : 1, 2, 3, 6, 113, 226, 339, 678
744 : 1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 186, 248, 372, 744
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 124,678,744,561, is 1.
Now, the common factors can be found like this.
124:2x 2x 31
678:2x 3x 113
744:2x 2x 2x 3x 31
561:3x 11x 17
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 2x 3x 3x 31 = 2232
Therefore, the value for common factors is 2232.
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 = 35090307648/(1x2232)
LCM = 35090307648/2232
LCM = 15721464
Thus, we can understand that the LCM of 124,678,744,561 is 15721464.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 124, 678, 744, 561
1. What is the LCM of 124, 678, 744, 561?
Answer: LCM of 124, 678, 744, 561 is 15721464.
2. How to calculate the LCM of 124, 678, 744, 561?
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 124, 678, 744, 561.
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}.