LCM of 762, 620, 990, 765
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 762, 620, 990, 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 762, 620, 990, 765. So, keep reading to learn more.
Given numbers are 762,620,990,765
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 762,620,990,765 is 132519420.
Find LCM of 762,620,990,765 with Prime Factorization
| 2 | 762, 620, 990, 765 |
| 3 | 381, 310, 495, 765 |
| 3 | 127, 310, 165, 255 |
| 5 | 127, 310, 55, 85 |
| 127, 62, 11, 17 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 5 x 127 x 62 x 11 x 17 = 132519420
Therefore, the lowest common multiple of 762,620,990,765 is 132519420.
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.
762 x 620 x 990 x 765 = 357802434000
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.
762 : 1, 2, 3, 6, 127, 254, 381, 762
620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
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 762,620,990,765, is 1.
Now, the common factors can be found like this.
762:2x 3x 127
620:2x 2x 5x 31
990:2x 3x 3x 5x 11
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 2x 3x 3x 3x 5x 5 = 2700
Therefore, the value for common factors is 2700.
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 = 357802434000/(1x2700)
LCM = 357802434000/2700
LCM = 132519420
Thus, we can understand that the LCM of 762,620,990,765 is 132519420.
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FAQs on LCM of 762, 620, 990, 765
1. What is the LCM of 762, 620, 990, 765?
Answer: LCM of 762, 620, 990, 765 is 132519420.
2. How to calculate the LCM of 762, 620, 990, 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 762, 620, 990, 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}.