LCM of 805, 687, 966, 691
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 805, 687, 966, 691 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 805, 687, 966, 691. So, keep reading to learn more.
Given numbers are 805,687,966,691
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 805,687,966,691 is 764294370.
Find LCM of 805,687,966,691 with Prime Factorization
| 3 | 805, 687, 966, 691 |
| 7 | 805, 229, 322, 691 |
| 23 | 115, 229, 46, 691 |
| 5, 229, 2, 691 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 23 x 5 x 229 x 2 x 691 = 764294370
Therefore, the lowest common multiple of 805,687,966,691 is 764294370.
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.
805 x 687 x 966 x 691 = 369154180710
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.
805 : 1, 5, 7, 23, 35, 115, 161, 805
687 : 1, 3, 229, 687
966 : 1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 138, 161, 322, 483, 966
691 : 1, 691
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 805,687,966,691, is 1.
Now, the common factors can be found like this.
805:5x 7x 23
687:3x 229
966:2x 3x 7x 23
691:691
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 23 = 483
Therefore, the value for common factors is 483.
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 = 369154180710/(1x483)
LCM = 369154180710/483
LCM = 764294370
Thus, we can understand that the LCM of 805,687,966,691 is 764294370.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 805, 687, 966, 691
1. What is the LCM of 805, 687, 966, 691?
Answer: LCM of 805, 687, 966, 691 is 764294370.
2. How to calculate the LCM of 805, 687, 966, 691?
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 805, 687, 966, 691.
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}.