LCM of 516, 654, 646, 765
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 516, 654, 646, 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 516, 654, 646, 765. So, keep reading to learn more.
Given numbers are 516,654,646,765
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 516,654,646,765 is 272502180.
Find LCM of 516,654,646,765 with Prime Factorization
| 2 | 516, 654, 646, 765 |
| 3 | 258, 327, 323, 765 |
| 17 | 86, 109, 323, 255 |
| 86, 109, 19, 15 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 17 x 86 x 109 x 19 x 15 = 272502180
Therefore, the lowest common multiple of 516,654,646,765 is 272502180.
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.
516 x 654 x 646 x 765 = 166771334160
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.
516 : 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516
654 : 1, 2, 3, 6, 109, 218, 327, 654
646 : 1, 2, 17, 19, 34, 38, 323, 646
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 516,654,646,765, is 1.
Now, the common factors can be found like this.
516:2x 2x 3x 43
654:2x 3x 109
646:2x 17x 19
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 17 = 612
Therefore, the value for common factors is 612.
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 = 166771334160/(1x612)
LCM = 166771334160/612
LCM = 272502180
Thus, we can understand that the LCM of 516,654,646,765 is 272502180.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 516, 654, 646, 765
1. What is the LCM of 516, 654, 646, 765?
Answer: LCM of 516, 654, 646, 765 is 272502180.
2. How to calculate the LCM of 516, 654, 646, 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 516, 654, 646, 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}.