LCM of 780, 885, 700, 400
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 780, 885, 700, 400 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 780, 885, 700, 400. So, keep reading to learn more.
Given numbers are 780,885,700,400
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 780,885,700,400 is 6442800.
Find LCM of 780,885,700,400 with Prime Factorization
| 2 | 780, 885, 700, 400 |
| 2 | 390, 885, 350, 200 |
| 3 | 195, 885, 175, 100 |
| 5 | 65, 295, 175, 100 |
| 5 | 13, 59, 35, 20 |
| 13, 59, 7, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 5 x 13 x 59 x 7 x 4 = 6442800
Therefore, the lowest common multiple of 780,885,700,400 is 6442800.
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.
780 x 885 x 700 x 400 = 193284000000
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.
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
885 : 1, 3, 5, 15, 59, 177, 295, 885
700 : 1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700
400 : 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
5 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,885,700,400, is 5.
Now, the common factors can be found like this.
780:2x 2x 3x 5x 13
885:3x 5x 59
700:2x 2x 5x 5x 7
400:2x 2x 2x 2x 5x 5
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 5x 5 = 6000
Therefore, the value for common factors is 6000.
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 = 193284000000/(5x6000)
LCM = 193284000000/30000
LCM = 6442800
Thus, we can understand that the LCM of 780,885,700,400 is 6442800.
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FAQs on LCM of 780, 885, 700, 400
1. What is the LCM of 780, 885, 700, 400?
Answer: LCM of 780, 885, 700, 400 is 6442800.
2. How to calculate the LCM of 780, 885, 700, 400?
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 780, 885, 700, 400.
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}.