LCM of 428, 638, 116, 724
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 428, 638, 116, 724 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 428, 638, 116, 724. So, keep reading to learn more.
Given numbers are 428,638,116,724
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 428,638,116,724 is 24712292.
Find LCM of 428,638,116,724 with Prime Factorization
| 2 | 428, 638, 116, 724 |
| 2 | 214, 319, 58, 362 |
| 29 | 107, 319, 29, 181 |
| 107, 11, 1, 181 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 29 x 107 x 11 x 1 x 181 = 24712292
Therefore, the lowest common multiple of 428,638,116,724 is 24712292.
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.
428 x 638 x 116 x 724 = 22933006976
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.
428 : 1, 2, 4, 107, 214, 428
638 : 1, 2, 11, 22, 29, 58, 319, 638
116 : 1, 2, 4, 29, 58, 116
724 : 1, 2, 4, 181, 362, 724
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 428,638,116,724, is 2.
Now, the common factors can be found like this.
428:2x 2x 107
638:2x 11x 29
116:2x 2x 29
724:2x 2x 181
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 2x 29 = 464
Therefore, the value for common factors is 464.
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 = 22933006976/(2x464)
LCM = 22933006976/928
LCM = 24712292
Thus, we can understand that the LCM of 428,638,116,724 is 24712292.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 428, 638, 116, 724
1. What is the LCM of 428, 638, 116, 724?
Answer: LCM of 428, 638, 116, 724 is 24712292.
2. How to calculate the LCM of 428, 638, 116, 724?
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 428, 638, 116, 724.
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}.