LCM of 287, 556, 658, 638
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 287, 556, 658, 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 287, 556, 658, 638. So, keep reading to learn more.
Given numbers are 287,556,658,638
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 287,556,658,638 is 2392462996.
Find LCM of 287,556,658,638 with Prime Factorization
| 2 | 287, 556, 658, 638 |
| 7 | 287, 278, 329, 319 |
| 41, 278, 47, 319 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 41 x 278 x 47 x 319 = 2392462996
Therefore, the lowest common multiple of 287,556,658,638 is 2392462996.
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.
287 x 556 x 658 x 638 = 66988963888
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.
287 : 1, 7, 41, 287
556 : 1, 2, 4, 139, 278, 556
658 : 1, 2, 7, 14, 47, 94, 329, 658
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 287,556,658,638, is 1.
Now, the common factors can be found like this.
287:7x 41
556:2x 2x 139
658:2x 7x 47
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 2x 7 = 28
Therefore, the value for common factors is 28.
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 = 66988963888/(1x28)
LCM = 66988963888/28
LCM = 2392462996
Thus, we can understand that the LCM of 287,556,658,638 is 2392462996.
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FAQs on LCM of 287, 556, 658, 638
1. What is the LCM of 287, 556, 658, 638?
Answer: LCM of 287, 556, 658, 638 is 2392462996.
2. How to calculate the LCM of 287, 556, 658, 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 287, 556, 658, 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}.