LCM of 145, 280, 687, 641, 860
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 145, 280, 687, 641, 860 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 145, 280, 687, 641, 860. So, keep reading to learn more.
Given numbers are 145,280,687,641,860
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 145,280,687,641,860 is 153758541720.
Find LCM of 145,280,687,641,860 with Prime Factorization
| 2 | 145, 280, 687, 641, 860 |
| 2 | 145, 140, 687, 641, 430 |
| 5 | 145, 70, 687, 641, 215 |
| 29, 14, 687, 641, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 29 x 14 x 687 x 641 x 43 = 153758541720
Therefore, the lowest common multiple of 145,280,687,641,860 is 153758541720.
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.
145 x 280 x 687 x 641 x 860 = 15375854172000
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.
145 : 1, 5, 29, 145
280 : 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
687 : 1, 3, 229, 687
641 : 1, 641
860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 145,280,687,641,860, is 1.
Now, the common factors can be found like this.
145:5x 29
280:2x 2x 2x 5x 7
687:3x 229
641:641
860:2x 2x 5x 43
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 5x 5 = 100
Therefore, the value for common factors is 100.
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 = 15375854172000/(1x100)
LCM = 15375854172000/100
LCM = 153758541720
Thus, we can understand that the LCM of 145,280,687,641,860 is 153758541720.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 145, 280, 687, 641, 860
1. What is the LCM of 145, 280, 687, 641, 860?
Answer: LCM of 145, 280, 687, 641, 860 is 153758541720.
2. How to calculate the LCM of 145, 280, 687, 641, 860?
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 145, 280, 687, 641, 860.
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}.