LCM of 858, 561, 574, 987
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 858, 561, 574, 987 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 858, 561, 574, 987. So, keep reading to learn more.
Given numbers are 858,561,574,987
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 858,561,574,987 is 196750554.
Find LCM of 858,561,574,987 with Prime Factorization
| 2 | 858, 561, 574, 987 |
| 3 | 429, 561, 287, 987 |
| 7 | 143, 187, 287, 329 |
| 11 | 143, 187, 41, 47 |
| 13, 17, 41, 47 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 11 x 13 x 17 x 41 x 47 = 196750554
Therefore, the lowest common multiple of 858,561,574,987 is 196750554.
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.
858 x 561 x 574 x 987 = 272696267844
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.
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
561 : 1, 3, 11, 17, 33, 51, 187, 561
574 : 1, 2, 7, 14, 41, 82, 287, 574
987 : 1, 3, 7, 21, 47, 141, 329, 987
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 858,561,574,987, is 1.
Now, the common factors can be found like this.
858:2x 3x 11x 13
561:3x 11x 17
574:2x 7x 41
987:3x 7x 47
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 7x 11 = 1386
Therefore, the value for common factors is 1386.
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 = 272696267844/(1x1386)
LCM = 272696267844/1386
LCM = 196750554
Thus, we can understand that the LCM of 858,561,574,987 is 196750554.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 858, 561, 574, 987
1. What is the LCM of 858, 561, 574, 987?
Answer: LCM of 858, 561, 574, 987 is 196750554.
2. How to calculate the LCM of 858, 561, 574, 987?
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 858, 561, 574, 987.
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}.