LCM of 156, 408, 856, 646
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 156, 408, 856, 646 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 156, 408, 856, 646. So, keep reading to learn more.
Given numbers are 156,408,856,646
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 156,408,856,646 is 10783032.
Find LCM of 156,408,856,646 with Prime Factorization
| 2 | 156, 408, 856, 646 |
| 2 | 78, 204, 428, 323 |
| 2 | 39, 102, 214, 323 |
| 3 | 39, 51, 107, 323 |
| 17 | 13, 17, 107, 323 |
| 13, 1, 107, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 17 x 13 x 1 x 107 x 19 = 10783032
Therefore, the lowest common multiple of 156,408,856,646 is 10783032.
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.
156 x 408 x 856 x 646 = 35195816448
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.
156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
408 : 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
856 : 1, 2, 4, 8, 107, 214, 428, 856
646 : 1, 2, 17, 19, 34, 38, 323, 646
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 156,408,856,646, is 2.
Now, the common factors can be found like this.
156:2x 2x 3x 13
408:2x 2x 2x 3x 17
856:2x 2x 2x 107
646:2x 17x 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 2x 2x 2x 3x 17 = 1632
Therefore, the value for common factors is 1632.
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 = 35195816448/(2x1632)
LCM = 35195816448/3264
LCM = 10783032
Thus, we can understand that the LCM of 156,408,856,646 is 10783032.
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FAQs on LCM of 156, 408, 856, 646
1. What is the LCM of 156, 408, 856, 646?
Answer: LCM of 156, 408, 856, 646 is 10783032.
2. How to calculate the LCM of 156, 408, 856, 646?
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 156, 408, 856, 646.
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}.