Find the LCM of 3, 691, 989, 645 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 3, 691, 989, 645. So, keep reading to learn more.
Given numbers are 3,691,989,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 3,691,989,645 is 10250985.
Find LCM of 3,691,989,645 with Prime Factorization
3 | 3, 691, 989, 645 |
43 | 1, 691, 989, 215 |
1, 691, 23, 5 |
Multiply the prime numbers at the bottom and the left side.
3 x 43 x 1 x 691 x 23 x 5 = 10250985
Therefore, the lowest common multiple of 3,691,989,645 is 10250985.
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.
3 x 691 x 989 x 645 = 1322377065
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.
3 : 1, 3
691 : 1, 691
989 : 1, 23, 43, 989
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 3,691,989,645, is 1.
Now, the common factors can be found like this.
3:3
691:691
989:23x 43
645:3x 5x 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 = 1322377065/(1x129)
LCM = 1322377065/129
LCM = 10250985
Thus, we can understand that the LCM of 3,691,989,645 is 10250985.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 3, 691, 989, 645?
Answer: LCM of 3, 691, 989, 645 is 10250985.
2. How to calculate the LCM of 3, 691, 989, 645?
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 3, 691, 989, 645.
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}.