Find the LCM of 642, 989, 867, 817 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 642, 989, 867, 817. So, keep reading to learn more.
Given numbers are 642,989,867,817
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 642,989,867,817 is 3486444558.
Find LCM of 642,989,867,817 with Prime Factorization
3 | 642, 989, 867, 817 |
43 | 214, 989, 289, 817 |
214, 23, 289, 19 |
Multiply the prime numbers at the bottom and the left side.
3 x 43 x 214 x 23 x 289 x 19 = 3486444558
Therefore, the lowest common multiple of 642,989,867,817 is 3486444558.
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.
642 x 989 x 867 x 817 = 449751347982
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.
642 : 1, 2, 3, 6, 107, 214, 321, 642
989 : 1, 23, 43, 989
867 : 1, 3, 17, 51, 289, 867
817 : 1, 19, 43, 817
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,989,867,817, is 1.
Now, the common factors can be found like this.
642:2x 3x 107
989:23x 43
867:3x 17x 17
817:19x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 43 = 129
Therefore, the value for common factors is 129.
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 = 449751347982/(1x129)
LCM = 449751347982/129
LCM = 3486444558
Thus, we can understand that the LCM of 642,989,867,817 is 3486444558.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 642, 989, 867, 817?
Answer: LCM of 642, 989, 867, 817 is 3486444558.
2. How to calculate the LCM of 642, 989, 867, 817?
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 642, 989, 867, 817.
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}.