LCM of 287, 689, 861, 541, 560
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 287, 689, 861, 541, 560 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 287, 689, 861, 541, 560. So, keep reading to learn more.
Given numbers are 287,689,861,541,560
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 287,689,861,541,560 is 25674951120.
Find LCM of 287,689,861,541,560 with Prime Factorization
| 7 | 287, 689, 861, 541, 560 |
| 41 | 41, 689, 123, 541, 80 |
| 1, 689, 3, 541, 80 |
Multiply the prime numbers at the bottom and the left side.
7 x 41 x 1 x 689 x 3 x 541 x 80 = 25674951120
Therefore, the lowest common multiple of 287,689,861,541,560 is 25674951120.
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.
287 x 689 x 861 x 541 x 560 = 51580976800080
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.
287 : 1, 7, 41, 287
689 : 1, 13, 53, 689
861 : 1, 3, 7, 21, 41, 123, 287, 861
541 : 1, 541
560 : 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 287,689,861,541,560, is 1.
Now, the common factors can be found like this.
287:7x 41
689:13x 53
861:3x 7x 41
541:541
560:2x 2x 2x 2x 5x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 7x 41 = 2009
Therefore, the value for common factors is 2009.
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 = 51580976800080/(1x2009)
LCM = 51580976800080/2009
LCM = 25674951120
Thus, we can understand that the LCM of 287,689,861,541,560 is 25674951120.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 287, 689, 861, 541, 560
1. What is the LCM of 287, 689, 861, 541, 560?
Answer: LCM of 287, 689, 861, 541, 560 is 25674951120.
2. How to calculate the LCM of 287, 689, 861, 541, 560?
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 287, 689, 861, 541, 560.
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}.