LCM of 643, 589, 646, 897, 342
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 643, 589, 646, 897, 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 643, 589, 646, 897, 342. So, keep reading to learn more.
Given numbers are 643,589,646,897,342
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 643,589,646,897,342 is 34651248138.
Find LCM of 643,589,646,897,342 with Prime Factorization
| 2 | 643, 589, 646, 897, 342 |
| 3 | 643, 589, 323, 897, 171 |
| 19 | 643, 589, 323, 299, 57 |
| 643, 31, 17, 299, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 19 x 643 x 31 x 17 x 299 x 3 = 34651248138
Therefore, the lowest common multiple of 643,589,646,897,342 is 34651248138.
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.
643 x 589 x 646 x 897 x 342 = 75054603466908
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.
643 : 1, 643
589 : 1, 19, 31, 589
646 : 1, 2, 17, 19, 34, 38, 323, 646
897 : 1, 3, 13, 23, 39, 69, 299, 897
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 643,589,646,897,342, is 1.
Now, the common factors can be found like this.
643:643
589:19x 31
646:2x 17x 19
897:3x 13x 23
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 3x 19x 19 = 2166
Therefore, the value for common factors is 2166.
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 = 75054603466908/(1x2166)
LCM = 75054603466908/2166
LCM = 34651248138
Thus, we can understand that the LCM of 643,589,646,897,342 is 34651248138.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 643, 589, 646, 897, 342
1. What is the LCM of 643, 589, 646, 897, 342?
Answer: LCM of 643, 589, 646, 897, 342 is 34651248138.
2. How to calculate the LCM of 643, 589, 646, 897, 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 643, 589, 646, 897, 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}.