LCM of 140, 686, 843, 505, 973
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 140, 686, 843, 505, 973 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 140, 686, 843, 505, 973. So, keep reading to learn more.
Given numbers are 140,686,843,505,973
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 140,686,843,505,973 is 81187256220.
Find LCM of 140,686,843,505,973 with Prime Factorization
| 2 | 140, 686, 843, 505, 973 |
| 5 | 70, 343, 843, 505, 973 |
| 7 | 14, 343, 843, 101, 973 |
| 2, 49, 843, 101, 139 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 2 x 49 x 843 x 101 x 139 = 81187256220
Therefore, the lowest common multiple of 140,686,843,505,973 is 81187256220.
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.
140 x 686 x 843 x 505 x 973 = 39781755547800
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.
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
686 : 1, 2, 7, 14, 49, 98, 343, 686
843 : 1, 3, 281, 843
505 : 1, 5, 101, 505
973 : 1, 7, 139, 973
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 140,686,843,505,973, is 1.
Now, the common factors can be found like this.
140:2x 2x 5x 7
686:2x 7x 7x 7
843:3x 281
505:5x 101
973:7x 139
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 7x 7 = 490
Therefore, the value for common factors is 490.
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 = 39781755547800/(1x490)
LCM = 39781755547800/490
LCM = 81187256220
Thus, we can understand that the LCM of 140,686,843,505,973 is 81187256220.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 140, 686, 843, 505, 973
1. What is the LCM of 140, 686, 843, 505, 973?
Answer: LCM of 140, 686, 843, 505, 973 is 81187256220.
2. How to calculate the LCM of 140, 686, 843, 505, 973?
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 140, 686, 843, 505, 973.
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}.