Find the LCM of 687, 902, 640, 238 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 687, 902, 640, 238. So, keep reading to learn more.
Given numbers are 687,902,640,238
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 687,902,640,238 is 23597185920.
Find LCM of 687,902,640,238 with Prime Factorization
2 | 687, 902, 640, 238 |
687, 451, 320, 119 |
Multiply the prime numbers at the bottom and the left side.
2 x 687 x 451 x 320 x 119 = 23597185920
Therefore, the lowest common multiple of 687,902,640,238 is 23597185920.
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.
687 x 902 x 640 x 238 = 94388743680
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.
687 : 1, 3, 229, 687
902 : 1, 2, 11, 22, 41, 82, 451, 902
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
238 : 1, 2, 7, 14, 17, 34, 119, 238
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 687,902,640,238, is 1.
Now, the common factors can be found like this.
687:3x 229
902:2x 11x 41
640:2x 2x 2x 2x 2x 2x 2x 5
238:2x 7x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2 = 4
Therefore, the value for common factors is 4.
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 = 94388743680/(1x4)
LCM = 94388743680/4
LCM = 23597185920
Thus, we can understand that the LCM of 687,902,640,238 is 23597185920.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 687, 902, 640, 238?
Answer: LCM of 687, 902, 640, 238 is 23597185920.
2. How to calculate the LCM of 687, 902, 640, 238?
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 687, 902, 640, 238.
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}.