LCM of 815, 252, 940, 672
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 815, 252, 940, 672 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 815, 252, 940, 672. So, keep reading to learn more.
Given numbers are 815,252,940,672
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 815,252,940,672 is 77222880.
Find LCM of 815,252,940,672 with Prime Factorization
| 2 | 815, 252, 940, 672 |
| 2 | 815, 126, 470, 336 |
| 3 | 815, 63, 235, 168 |
| 5 | 815, 21, 235, 56 |
| 7 | 163, 21, 47, 56 |
| 163, 3, 47, 8 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 163 x 3 x 47 x 8 = 77222880
Therefore, the lowest common multiple of 815,252,940,672 is 77222880.
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.
815 x 252 x 940 x 672 = 129734438400
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.
815 : 1, 5, 163, 815
252 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252
940 : 1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940
672 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 815,252,940,672, is 1.
Now, the common factors can be found like this.
815:5x 163
252:2x 2x 3x 3x 7
940:2x 2x 5x 47
672:2x 2x 2x 2x 2x 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.
2x 2x 2x 2x 3x 5x 7 = 1680
Therefore, the value for common factors is 1680.
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 = 129734438400/(1x1680)
LCM = 129734438400/1680
LCM = 77222880
Thus, we can understand that the LCM of 815,252,940,672 is 77222880.
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FAQs on LCM of 815, 252, 940, 672
1. What is the LCM of 815, 252, 940, 672?
Answer: LCM of 815, 252, 940, 672 is 77222880.
2. How to calculate the LCM of 815, 252, 940, 672?
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 815, 252, 940, 672.
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}.