Find the LCM of 767, 691, 689, 621 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 767, 691, 689, 621. So, keep reading to learn more.
Given numbers are 767,691,689,621
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 767,691,689,621 is 17443791261.
Find LCM of 767,691,689,621 with Prime Factorization
13 | 767, 691, 689, 621 |
59, 691, 53, 621 |
Multiply the prime numbers at the bottom and the left side.
13 x 59 x 691 x 53 x 621 = 17443791261
Therefore, the lowest common multiple of 767,691,689,621 is 17443791261.
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.
767 x 691 x 689 x 621 = 226769286393
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.
767 : 1, 13, 59, 767
691 : 1, 691
689 : 1, 13, 53, 689
621 : 1, 3, 9, 23, 27, 69, 207, 621
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 767,691,689,621, is 1.
Now, the common factors can be found like this.
767:13x 59
691:691
689:13x 53
621:3x 3x 3x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
13 = 13
Therefore, the value for common factors is 13.
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 = 226769286393/(1x13)
LCM = 226769286393/13
LCM = 17443791261
Thus, we can understand that the LCM of 767,691,689,621 is 17443791261.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 767, 691, 689, 621?
Answer: LCM of 767, 691, 689, 621 is 17443791261.
2. How to calculate the LCM of 767, 691, 689, 621?
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 767, 691, 689, 621.
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}.