LCM of 1, 640, 770, 881
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 1, 640, 770, 881 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 1, 640, 770, 881. So, keep reading to learn more.
Given numbers are 1,640,770,881
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 1,640,770,881 is 43415680.
Find LCM of 1,640,770,881 with Prime Factorization
| 2 | 1, 640, 770, 881 |
| 5 | 1, 320, 385, 881 |
| 1, 64, 77, 881 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 1 x 64 x 77 x 881 = 43415680
Therefore, the lowest common multiple of 1,640,770,881 is 43415680.
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.
1 x 640 x 770 x 881 = 434156800
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.
1 : 1
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
881 : 1, 881
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 1,640,770,881, is 1.
Now, the common factors can be found like this.
1:
640:2x 2x 2x 2x 2x 2x 2x 5
770:2x 5x 7x 11
881:881
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5 = 10
Therefore, the value for common factors is 10.
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 = 434156800/(1x10)
LCM = 434156800/10
LCM = 43415680
Thus, we can understand that the LCM of 1,640,770,881 is 43415680.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 1, 640, 770, 881
1. What is the LCM of 1, 640, 770, 881?
Answer: LCM of 1, 640, 770, 881 is 43415680.
2. How to calculate the LCM of 1, 640, 770, 881?
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 1, 640, 770, 881.
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}.