LCM of 920, 798, 408, 768
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 920, 798, 408, 768 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 920, 798, 408, 768. So, keep reading to learn more.
Given numbers are 920,798,408,768
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 920,798,408,768 is 199691520.
Find LCM of 920,798,408,768 with Prime Factorization
| 2 | 920, 798, 408, 768 |
| 2 | 460, 399, 204, 384 |
| 2 | 230, 399, 102, 192 |
| 3 | 115, 399, 51, 96 |
| 115, 133, 17, 32 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 115 x 133 x 17 x 32 = 199691520
Therefore, the lowest common multiple of 920,798,408,768 is 199691520.
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.
920 x 798 x 408 x 768 = 230044631040
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.
920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
798 : 1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798
408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
768 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 920,798,408,768, is 2.
Now, the common factors can be found like this.
920:2x 2x 2x 5x 23
798:2x 3x 7x 19
408:2x 2x 2x 3x 17
768:2x 2x 2x 2x 2x 2x 2x 2x 3
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 2x 2x 3x 3 = 576
Therefore, the value for common factors is 576.
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 = 230044631040/(2x576)
LCM = 230044631040/1152
LCM = 199691520
Thus, we can understand that the LCM of 920,798,408,768 is 199691520.
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FAQs on LCM of 920, 798, 408, 768
1. What is the LCM of 920, 798, 408, 768?
Answer: LCM of 920, 798, 408, 768 is 199691520.
2. How to calculate the LCM of 920, 798, 408, 768?
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 920, 798, 408, 768.
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}.