LCM of 772, 640, 320, 909
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 772, 640, 320, 909 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 772, 640, 320, 909. So, keep reading to learn more.
Given numbers are 772,640,320,909
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 772,640,320,909 is 112279680.
Find LCM of 772,640,320,909 with Prime Factorization
| 2 | 772, 640, 320, 909 |
| 2 | 386, 320, 160, 909 |
| 2 | 193, 80, 160, 909 |
| 2 | 193, 40, 80, 909 |
| 2 | 193, 20, 40, 909 |
| 2 | 193, 10, 20, 909 |
| 5 | 193, 5, 10, 909 |
| 193, 1, 2, 909 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 2 x 2 x 5 x 193 x 1 x 2 x 909 = 112279680
Therefore, the lowest common multiple of 772,640,320,909 is 112279680.
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.
772 x 640 x 320 x 909 = 143717990400
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.
772 : 1, 2, 4, 193, 386, 772
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
320 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
909 : 1, 3, 9, 101, 303, 909
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 772,640,320,909, is 1.
Now, the common factors can be found like this.
772:2x 2x 193
640:2x 2x 2x 2x 2x 2x 2x 5
320:2x 2x 2x 2x 2x 2x 5
909:3x 3x 101
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 2x 2x 5 = 1280
Therefore, the value for common factors is 1280.
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 = 143717990400/(1x1280)
LCM = 143717990400/1280
LCM = 112279680
Thus, we can understand that the LCM of 772,640,320,909 is 112279680.
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FAQs on LCM of 772, 640, 320, 909
1. What is the LCM of 772, 640, 320, 909?
Answer: LCM of 772, 640, 320, 909 is 112279680.
2. How to calculate the LCM of 772, 640, 320, 909?
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 772, 640, 320, 909.
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}.