LCM of 215, 528, 643, 860
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 215, 528, 643, 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 215, 528, 643, 860. So, keep reading to learn more.
Given numbers are 215,528,643,860
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 215,528,643,860 is 72993360.
Find LCM of 215,528,643,860 with Prime Factorization
| 2 | 215, 528, 643, 860 |
| 2 | 215, 264, 643, 430 |
| 5 | 215, 132, 643, 215 |
| 43 | 43, 132, 643, 43 |
| 1, 132, 643, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 43 x 1 x 132 x 643 x 1 = 72993360
Therefore, the lowest common multiple of 215,528,643,860 is 72993360.
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.
215 x 528 x 643 x 860 = 62774289600
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.
215 : 1, 5, 43, 215
528 : 1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528
643 : 1, 643
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 215,528,643,860, is 1.
Now, the common factors can be found like this.
215:5x 43
528:2x 2x 2x 2x 3x 11
643:643
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 43 = 860
Therefore, the value for common factors is 860.
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 = 62774289600/(1x860)
LCM = 62774289600/860
LCM = 72993360
Thus, we can understand that the LCM of 215,528,643,860 is 72993360.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 215, 528, 643, 860
1. What is the LCM of 215, 528, 643, 860?
Answer: LCM of 215, 528, 643, 860 is 72993360.
2. How to calculate the LCM of 215, 528, 643, 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 215, 528, 643, 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}.