LCM of 357, 589, 780, 646
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 357, 589, 780, 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 357, 589, 780, 646. So, keep reading to learn more.
Given numbers are 357,589,780,646
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 357,589,780,646 is 54670980.
Find LCM of 357,589,780,646 with Prime Factorization
| 2 | 357, 589, 780, 646 |
| 3 | 357, 589, 390, 323 |
| 17 | 119, 589, 130, 323 |
| 19 | 7, 589, 130, 19 |
| 7, 31, 130, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 17 x 19 x 7 x 31 x 130 x 1 = 54670980
Therefore, the lowest common multiple of 357,589,780,646 is 54670980.
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.
357 x 589 x 780 x 646 = 105952359240
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.
357 : 1, 3, 7, 17, 21, 51, 119, 357
589 : 1, 19, 31, 589
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
646 : 1, 2, 17, 19, 34, 38, 323, 646
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 357,589,780,646, is 1.
Now, the common factors can be found like this.
357:3x 7x 17
589:19x 31
780:2x 2x 3x 5x 13
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 3x 17x 19 = 1938
Therefore, the value for common factors is 1938.
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 = 105952359240/(1x1938)
LCM = 105952359240/1938
LCM = 54670980
Thus, we can understand that the LCM of 357,589,780,646 is 54670980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 357, 589, 780, 646
1. What is the LCM of 357, 589, 780, 646?
Answer: LCM of 357, 589, 780, 646 is 54670980.
2. How to calculate the LCM of 357, 589, 780, 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 357, 589, 780, 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}.