LCM of 668, 987, 778, 813, 765
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 668, 987, 778, 813, 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 668, 987, 778, 813, 765. So, keep reading to learn more.
Given numbers are 668,987,778,813,765
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 668,987,778,813,765 is 17723630518020.
Find LCM of 668,987,778,813,765 with Prime Factorization
| 2 | 668, 987, 778, 813, 765 |
| 3 | 334, 987, 389, 813, 765 |
| 334, 329, 389, 271, 255 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 334 x 329 x 389 x 271 x 255 = 17723630518020
Therefore, the lowest common multiple of 668,987,778,813,765 is 17723630518020.
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.
668 x 987 x 778 x 813 x 765 = 319025349324360
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.
668 : 1, 2, 4, 167, 334, 668
987 : 1, 3, 7, 21, 47, 141, 329, 987
778 : 1, 2, 389, 778
813 : 1, 3, 271, 813
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 668,987,778,813,765, is 1.
Now, the common factors can be found like this.
668:2x 2x 167
987:3x 7x 47
778:2x 389
813:3x 271
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.
2x 3x 3 = 18
Therefore, the value for common factors is 18.
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 = 319025349324360/(1x18)
LCM = 319025349324360/18
LCM = 17723630518020
Thus, we can understand that the LCM of 668,987,778,813,765 is 17723630518020.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 668, 987, 778, 813, 765
1. What is the LCM of 668, 987, 778, 813, 765?
Answer: LCM of 668, 987, 778, 813, 765 is 17723630518020.
2. How to calculate the LCM of 668, 987, 778, 813, 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 668, 987, 778, 813, 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}.