LCM of 646, 965, 560, 109, 538
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 965, 560, 109, 538 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 646, 965, 560, 109, 538. So, keep reading to learn more.
Given numbers are 646,965,560,109,538
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,965,560,109,538 is 1023591418640.
Find LCM of 646,965,560,109,538 with Prime Factorization
| 2 | 646, 965, 560, 109, 538 |
| 5 | 323, 965, 280, 109, 269 |
| 323, 193, 56, 109, 269 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 323 x 193 x 56 x 109 x 269 = 1023591418640
Therefore, the lowest common multiple of 646,965,560,109,538 is 1023591418640.
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.
646 x 965 x 560 x 109 x 538 = 20471828372800
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
965 : 1, 5, 193, 965
560 : 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560
109 : 1, 109
538 : 1, 2, 269, 538
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,965,560,109,538, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
965:5x 193
560:2x 2x 2x 2x 5x 7
109:109
538:2x 269
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 5 = 20
Therefore, the value for common factors is 20.
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 = 20471828372800/(1x20)
LCM = 20471828372800/20
LCM = 1023591418640
Thus, we can understand that the LCM of 646,965,560,109,538 is 1023591418640.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 646, 965, 560, 109, 538
1. What is the LCM of 646, 965, 560, 109, 538?
Answer: LCM of 646, 965, 560, 109, 538 is 1023591418640.
2. How to calculate the LCM of 646, 965, 560, 109, 538?
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 646, 965, 560, 109, 538.
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}.