LCM of 646, 378, 879, 342
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 378, 879, 342 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 646, 378, 879, 342. So, keep reading to learn more.
Given numbers are 646,378,879,342
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,378,879,342 is 35773542.
Find LCM of 646,378,879,342 with Prime Factorization
| 2 | 646, 378, 879, 342 |
| 3 | 323, 189, 879, 171 |
| 3 | 323, 63, 293, 57 |
| 19 | 323, 21, 293, 19 |
| 17, 21, 293, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 19 x 17 x 21 x 293 x 1 = 35773542
Therefore, the lowest common multiple of 646,378,879,342 is 35773542.
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.
646 x 378 x 879 x 342 = 73407308184
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
879 : 1, 3, 293, 879
342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,378,879,342, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
378:2x 3x 3x 3x 7
879:3x 293
342:2x 3x 3x 19
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 19 = 2052
Therefore, the value for common factors is 2052.
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 = 73407308184/(1x2052)
LCM = 73407308184/2052
LCM = 35773542
Thus, we can understand that the LCM of 646,378,879,342 is 35773542.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 646, 378, 879, 342
1. What is the LCM of 646, 378, 879, 342?
Answer: LCM of 646, 378, 879, 342 is 35773542.
2. How to calculate the LCM of 646, 378, 879, 342?
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 646, 378, 879, 342.
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}.