LCM of 765, 520, 428, 117, 655
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 765, 520, 428, 117, 655 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 765, 520, 428, 117, 655. So, keep reading to learn more.
Given numbers are 765,520,428,117,655
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 765,520,428,117,655 is 1115192520.
Find LCM of 765,520,428,117,655 with Prime Factorization
| 2 | 765, 520, 428, 117, 655 |
| 2 | 765, 260, 214, 117, 655 |
| 3 | 765, 130, 107, 117, 655 |
| 3 | 255, 130, 107, 39, 655 |
| 5 | 85, 130, 107, 13, 655 |
| 13 | 17, 26, 107, 13, 131 |
| 17, 2, 107, 1, 131 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 13 x 17 x 2 x 107 x 1 x 131 = 1115192520
Therefore, the lowest common multiple of 765,520,428,117,655 is 1115192520.
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.
765 x 520 x 428 x 117 x 655 = 13047752484000
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.
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
520 : 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520
428 : 1, 2, 4, 107, 214, 428
117 : 1, 3, 9, 13, 39, 117
655 : 1, 5, 131, 655
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 765,520,428,117,655, is 1.
Now, the common factors can be found like this.
765:3x 3x 5x 17
520:2x 2x 2x 5x 13
428:2x 2x 107
117:3x 3x 13
655:5x 131
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 5x 5x 13 = 11700
Therefore, the value for common factors is 11700.
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 = 13047752484000/(1x11700)
LCM = 13047752484000/11700
LCM = 1115192520
Thus, we can understand that the LCM of 765,520,428,117,655 is 1115192520.
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FAQs on LCM of 765, 520, 428, 117, 655
1. What is the LCM of 765, 520, 428, 117, 655?
Answer: LCM of 765, 520, 428, 117, 655 is 1115192520.
2. How to calculate the LCM of 765, 520, 428, 117, 655?
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 765, 520, 428, 117, 655.
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}.