LCM of 787, 841, 861, 765
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 787, 841, 861, 765 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 787, 841, 861, 765. So, keep reading to learn more.
Given numbers are 787,841,861,765
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 787,841,861,765 is 145316209185.
Find LCM of 787,841,861,765 with Prime Factorization
| 3 | 787, 841, 861, 765 |
| 787, 841, 287, 255 |
Multiply the prime numbers at the bottom and the left side.
3 x 787 x 841 x 287 x 255 = 145316209185
Therefore, the lowest common multiple of 787,841,861,765 is 145316209185.
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.
787 x 841 x 861 x 765 = 435948627555
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.
787 : 1, 787
841 : 1, 29, 841
861 : 1, 3, 7, 21, 41, 123, 287, 861
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 787,841,861,765, is 1.
Now, the common factors can be found like this.
787:787
841:29x 29
861:3x 7x 41
765:3x 3x 5x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3 = 3
Therefore, the value for common factors is 3.
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 = 435948627555/(1x3)
LCM = 435948627555/3
LCM = 145316209185
Thus, we can understand that the LCM of 787,841,861,765 is 145316209185.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 787, 841, 861, 765
1. What is the LCM of 787, 841, 861, 765?
Answer: LCM of 787, 841, 861, 765 is 145316209185.
2. How to calculate the LCM of 787, 841, 861, 765?
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 787, 841, 861, 765.
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}.