LCM of 678, 921, 795, 523, 768
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 678, 921, 795, 523, 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 678, 921, 795, 523, 768. So, keep reading to learn more.
Given numbers are 678,921,795,523,768
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 678,921,795,523,768 is 3692543343360.
Find LCM of 678,921,795,523,768 with Prime Factorization
| 2 | 678, 921, 795, 523, 768 |
| 3 | 339, 921, 795, 523, 384 |
| 113, 307, 265, 523, 128 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 113 x 307 x 265 x 523 x 128 = 3692543343360
Therefore, the lowest common multiple of 678,921,795,523,768 is 3692543343360.
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.
678 x 921 x 795 x 523 x 768 = 199397340541440
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.
678 : 1, 2, 3, 6, 113, 226, 339, 678
921 : 1, 3, 307, 921
795 : 1, 3, 5, 15, 53, 159, 265, 795
523 : 1, 523
768 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 678,921,795,523,768, is 1.
Now, the common factors can be found like this.
678:2x 3x 113
921:3x 307
795:3x 5x 53
523:523
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 3x 3x 3 = 54
Therefore, the value for common factors is 54.
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 = 199397340541440/(1x54)
LCM = 199397340541440/54
LCM = 3692543343360
Thus, we can understand that the LCM of 678,921,795,523,768 is 3692543343360.
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FAQs on LCM of 678, 921, 795, 523, 768
1. What is the LCM of 678, 921, 795, 523, 768?
Answer: LCM of 678, 921, 795, 523, 768 is 3692543343360.
2. How to calculate the LCM of 678, 921, 795, 523, 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 678, 921, 795, 523, 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}.