LCM of 912, 801, 480, 780
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 912, 801, 480, 780 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 912, 801, 480, 780. So, keep reading to learn more.
Given numbers are 912,801,480,780
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 912,801,480,780 is 31655520.
Find LCM of 912,801,480,780 with Prime Factorization
| 2 | 912, 801, 480, 780 |
| 2 | 456, 801, 240, 390 |
| 2 | 228, 801, 120, 195 |
| 2 | 114, 801, 60, 195 |
| 3 | 57, 801, 30, 195 |
| 5 | 19, 267, 10, 65 |
| 19, 267, 2, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 3 x 5 x 19 x 267 x 2 x 13 = 31655520
Therefore, the lowest common multiple of 912,801,480,780 is 31655520.
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.
912 x 801 x 480 x 780 = 273503692800
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.
912 : 1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912
801 : 1, 3, 9, 89, 267, 801
480 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480
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
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 912,801,480,780, is 3.
Now, the common factors can be found like this.
912:2x 2x 2x 2x 3x 19
801:3x 3x 89
480:2x 2x 2x 2x 2x 3x 5
780:2x 2x 3x 5x 13
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 3x 5 = 2880
Therefore, the value for common factors is 2880.
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 = 273503692800/(3x2880)
LCM = 273503692800/8640
LCM = 31655520
Thus, we can understand that the LCM of 912,801,480,780 is 31655520.
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FAQs on LCM of 912, 801, 480, 780
1. What is the LCM of 912, 801, 480, 780?
Answer: LCM of 912, 801, 480, 780 is 31655520.
2. How to calculate the LCM of 912, 801, 480, 780?
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 912, 801, 480, 780.
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}.