Find the LCM of 756, 856, 851, 921 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 756, 856, 851, 921. So, keep reading to learn more.
Given numbers are 756,856,851,921
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 756,856,851,921 is 42267202488.
Find LCM of 756,856,851,921 with Prime Factorization
2 | 756, 856, 851, 921 |
2 | 378, 428, 851, 921 |
3 | 189, 214, 851, 921 |
63, 214, 851, 307 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 63 x 214 x 851 x 307 = 42267202488
Therefore, the lowest common multiple of 756,856,851,921 is 42267202488.
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.
756 x 856 x 851 x 921 = 507206429856
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.
756 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
856 : 1, 2, 4, 8, 107, 214, 428, 856
851 : 1, 23, 37, 851
921 : 1, 3, 307, 921
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 756,856,851,921, is 1.
Now, the common factors can be found like this.
756:2x 2x 3x 3x 3x 7
856:2x 2x 2x 107
851:23x 37
921:3x 307
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 3 = 12
Therefore, the value for common factors is 12.
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 = 507206429856/(1x12)
LCM = 507206429856/12
LCM = 42267202488
Thus, we can understand that the LCM of 756,856,851,921 is 42267202488.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 756, 856, 851, 921?
Answer: LCM of 756, 856, 851, 921 is 42267202488.
2. How to calculate the LCM of 756, 856, 851, 921?
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 756, 856, 851, 921.
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}.