LCM of 644, 241, 690, 713
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 644, 241, 690, 713 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 644, 241, 690, 713. So, keep reading to learn more.
Given numbers are 644,241,690,713
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 644,241,690,713 is 72169860.
Find LCM of 644,241,690,713 with Prime Factorization
| 2 | 644, 241, 690, 713 |
| 23 | 322, 241, 345, 713 |
| 14, 241, 15, 31 |
Multiply the prime numbers at the bottom and the left side.
2 x 23 x 14 x 241 x 15 x 31 = 72169860
Therefore, the lowest common multiple of 644,241,690,713 is 72169860.
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.
644 x 241 x 690 x 713 = 76355711880
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.
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
241 : 1, 241
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
713 : 1, 23, 31, 713
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,241,690,713, is 1.
Now, the common factors can be found like this.
644:2x 2x 7x 23
241:241
690:2x 3x 5x 23
713:23x 31
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 23x 23 = 1058
Therefore, the value for common factors is 1058.
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 = 76355711880/(1x1058)
LCM = 76355711880/1058
LCM = 72169860
Thus, we can understand that the LCM of 644,241,690,713 is 72169860.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 644, 241, 690, 713
1. What is the LCM of 644, 241, 690, 713?
Answer: LCM of 644, 241, 690, 713 is 72169860.
2. How to calculate the LCM of 644, 241, 690, 713?
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 644, 241, 690, 713.
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}.