LCM of 631, 345, 558, 647
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 631, 345, 558, 647 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 631, 345, 558, 647. So, keep reading to learn more.
Given numbers are 631,345,558,647
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 631,345,558,647 is 26197851690.
Find LCM of 631,345,558,647 with Prime Factorization
| 3 | 631, 345, 558, 647 |
| 631, 115, 186, 647 |
Multiply the prime numbers at the bottom and the left side.
3 x 631 x 115 x 186 x 647 = 26197851690
Therefore, the lowest common multiple of 631,345,558,647 is 26197851690.
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.
631 x 345 x 558 x 647 = 78593555070
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.
631 : 1, 631
345 : 1, 3, 5, 15, 23, 69, 115, 345
558 : 1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558
647 : 1, 647
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 631,345,558,647, is 1.
Now, the common factors can be found like this.
631:631
345:3x 5x 23
558:2x 3x 3x 31
647:647
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3 = 3
Therefore, the value for common factors is 3.
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 = 78593555070/(1x3)
LCM = 78593555070/3
LCM = 26197851690
Thus, we can understand that the LCM of 631,345,558,647 is 26197851690.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 631, 345, 558, 647
1. What is the LCM of 631, 345, 558, 647?
Answer: LCM of 631, 345, 558, 647 is 26197851690.
2. How to calculate the LCM of 631, 345, 558, 647?
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 631, 345, 558, 647.
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}.