LCM of 438, 344, 758, 389, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 438, 344, 758, 389, 645 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 438, 344, 758, 389, 645. So, keep reading to learn more.
Given numbers are 438,344,758,389,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 438,344,758,389,645 is 55534309080.
Find LCM of 438,344,758,389,645 with Prime Factorization
| 2 | 438, 344, 758, 389, 645 |
| 3 | 219, 172, 379, 389, 645 |
| 43 | 73, 172, 379, 389, 215 |
| 73, 4, 379, 389, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 43 x 73 x 4 x 379 x 389 x 5 = 55534309080
Therefore, the lowest common multiple of 438,344,758,389,645 is 55534309080.
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.
438 x 344 x 758 x 389 x 645 = 28655703485280
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.
438 : 1, 2, 3, 6, 73, 146, 219, 438
344 : 1, 2, 4, 8, 43, 86, 172, 344
758 : 1, 2, 379, 758
389 : 1, 389
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 438,344,758,389,645, is 1.
Now, the common factors can be found like this.
438:2x 3x 73
344:2x 2x 2x 43
758:2x 379
389:389
645:3x 5x 43
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 43 = 516
Therefore, the value for common factors is 516.
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 = 28655703485280/(1x516)
LCM = 28655703485280/516
LCM = 55534309080
Thus, we can understand that the LCM of 438,344,758,389,645 is 55534309080.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 438, 344, 758, 389, 645
1. What is the LCM of 438, 344, 758, 389, 645?
Answer: LCM of 438, 344, 758, 389, 645 is 55534309080.
2. How to calculate the LCM of 438, 344, 758, 389, 645?
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 438, 344, 758, 389, 645.
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}.