LCM of 820, 255, 215, 968, 785
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 820, 255, 215, 968, 785 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 820, 255, 215, 968, 785. So, keep reading to learn more.
Given numbers are 820,255,215,968,785
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 820,255,215,968,785 is 68323090440.
Find LCM of 820,255,215,968,785 with Prime Factorization
| 2 | 820, 255, 215, 968, 785 |
| 2 | 410, 255, 215, 484, 785 |
| 5 | 205, 255, 215, 242, 785 |
| 41, 51, 43, 242, 157 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 41 x 51 x 43 x 242 x 157 = 68323090440
Therefore, the lowest common multiple of 820,255,215,968,785 is 68323090440.
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.
820 x 255 x 215 x 968 x 785 = 34161545220000
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.
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
255 : 1, 3, 5, 15, 17, 51, 85, 255
215 : 1, 5, 43, 215
968 : 1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968
785 : 1, 5, 157, 785
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 820,255,215,968,785, is 1.
Now, the common factors can be found like this.
820:2x 2x 5x 41
255:3x 5x 17
215:5x 43
968:2x 2x 2x 11x 11
785:5x 157
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 5x 5 = 500
Therefore, the value for common factors is 500.
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 = 34161545220000/(1x500)
LCM = 34161545220000/500
LCM = 68323090440
Thus, we can understand that the LCM of 820,255,215,968,785 is 68323090440.
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FAQs on LCM of 820, 255, 215, 968, 785
1. What is the LCM of 820, 255, 215, 968, 785?
Answer: LCM of 820, 255, 215, 968, 785 is 68323090440.
2. How to calculate the LCM of 820, 255, 215, 968, 785?
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 820, 255, 215, 968, 785.
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}.