Find the LCM of 847, 691, 451, 189 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 847, 691, 451, 189. So, keep reading to learn more.
Given numbers are 847,691,451,189
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 847,691,451,189 is 647901639.
Find LCM of 847,691,451,189 with Prime Factorization
7 | 847, 691, 451, 189 |
11 | 121, 691, 451, 27 |
11, 691, 41, 27 |
Multiply the prime numbers at the bottom and the left side.
7 x 11 x 11 x 691 x 41 x 27 = 647901639
Therefore, the lowest common multiple of 847,691,451,189 is 647901639.
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.
847 x 691 x 451 x 189 = 49888426203
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.
847 : 1, 7, 11, 77, 121, 847
691 : 1, 691
451 : 1, 11, 41, 451
189 : 1, 3, 7, 9, 21, 27, 63, 189
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 847,691,451,189, is 1.
Now, the common factors can be found like this.
847:7x 11x 11
691:691
451:11x 41
189:3x 3x 3x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 11 = 77
Therefore, the value for common factors is 77.
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 = 49888426203/(1x77)
LCM = 49888426203/77
LCM = 647901639
Thus, we can understand that the LCM of 847,691,451,189 is 647901639.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 847, 691, 451, 189?
Answer: LCM of 847, 691, 451, 189 is 647901639.
2. How to calculate the LCM of 847, 691, 451, 189?
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 847, 691, 451, 189.
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}.