LCM of 987, 556, 980, 315
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 987, 556, 980, 315 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 987, 556, 980, 315. So, keep reading to learn more.
Given numbers are 987,556,980,315
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 987,556,980,315 is 57621060.
Find LCM of 987,556,980,315 with Prime Factorization
| 2 | 987, 556, 980, 315 |
| 2 | 987, 278, 490, 315 |
| 3 | 987, 139, 245, 315 |
| 5 | 329, 139, 245, 105 |
| 7 | 329, 139, 49, 21 |
| 47, 139, 7, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 47 x 139 x 7 x 3 = 57621060
Therefore, the lowest common multiple of 987,556,980,315 is 57621060.
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.
987 x 556 x 980 x 315 = 169405916400
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.
987 : 1, 3, 7, 21, 47, 141, 329, 987
556 : 1, 2, 4, 139, 278, 556
980 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
315 : 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 987,556,980,315, is 1.
Now, the common factors can be found like this.
987:3x 7x 47
556:2x 2x 139
980:2x 2x 5x 7x 7
315:3x 3x 5x 7
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 3x 5x 7x 7 = 2940
Therefore, the value for common factors is 2940.
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 = 169405916400/(1x2940)
LCM = 169405916400/2940
LCM = 57621060
Thus, we can understand that the LCM of 987,556,980,315 is 57621060.
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FAQs on LCM of 987, 556, 980, 315
1. What is the LCM of 987, 556, 980, 315?
Answer: LCM of 987, 556, 980, 315 is 57621060.
2. How to calculate the LCM of 987, 556, 980, 315?
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 987, 556, 980, 315.
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}.