Find the LCM of 711, 681, 728, 638 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 711, 681, 728, 638. So, keep reading to learn more.
Given numbers are 711,681,728,638
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 711,681,728,638 is 37481548104.
Find LCM of 711,681,728,638 with Prime Factorization
2 | 711, 681, 728, 638 |
3 | 711, 681, 364, 319 |
237, 227, 364, 319 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 237 x 227 x 364 x 319 = 37481548104
Therefore, the lowest common multiple of 711,681,728,638 is 37481548104.
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.
711 x 681 x 728 x 638 = 224889288624
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.
711 : 1, 3, 9, 79, 237, 711
681 : 1, 3, 227, 681
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
638 : 1, 2, 11, 22, 29, 58, 319, 638
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 711,681,728,638, is 1.
Now, the common factors can be found like this.
711:3x 3x 79
681:3x 227
728:2x 2x 2x 7x 13
638:2x 11x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3 = 6
Therefore, the value for common factors is 6.
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 = 224889288624/(1x6)
LCM = 224889288624/6
LCM = 37481548104
Thus, we can understand that the LCM of 711,681,728,638 is 37481548104.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 711, 681, 728, 638?
Answer: LCM of 711, 681, 728, 638 is 37481548104.
2. How to calculate the LCM of 711, 681, 728, 638?
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 711, 681, 728, 638.
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}.