Find the LCM of 638, 721, 616, 133, 865 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 638, 721, 616, 133, 865. So, keep reading to learn more.
Given numbers are 638,721,616,133,865
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 638,721,616,133,865 is 30240268520.
Find LCM of 638,721,616,133,865 with Prime Factorization
2 | 638, 721, 616, 133, 865 |
7 | 319, 721, 308, 133, 865 |
11 | 319, 103, 44, 19, 865 |
29, 103, 4, 19, 865 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 11 x 29 x 103 x 4 x 19 x 865 = 30240268520
Therefore, the lowest common multiple of 638,721,616,133,865 is 30240268520.
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.
638 x 721 x 616 x 133 x 865 = 32599009464560
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.
638 : 1, 2, 11, 22, 29, 58, 319, 638
721 : 1, 7, 103, 721
616 : 1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616
133 : 1, 7, 19, 133
865 : 1, 5, 173, 865
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,721,616,133,865, is 1.
Now, the common factors can be found like this.
638:2x 11x 29
721:7x 103
616:2x 2x 2x 7x 11
133:7x 19
865:5x 173
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 7x 7x 11 = 1078
Therefore, the value for common factors is 1078.
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 = 32599009464560/(1x1078)
LCM = 32599009464560/1078
LCM = 30240268520
Thus, we can understand that the LCM of 638,721,616,133,865 is 30240268520.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 638, 721, 616, 133, 865?
Answer: LCM of 638, 721, 616, 133, 865 is 30240268520.
2. How to calculate the LCM of 638, 721, 616, 133, 865?
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 638, 721, 616, 133, 865.
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}.