LCM of 851, 905, 840, 543
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 851, 905, 840, 543 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 851, 905, 840, 543. So, keep reading to learn more.
Given numbers are 851,905,840,543
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 851,905,840,543 is 129386040.
Find LCM of 851,905,840,543 with Prime Factorization
| 3 | 851, 905, 840, 543 |
| 5 | 851, 905, 280, 181 |
| 181 | 851, 181, 56, 181 |
| 851, 1, 56, 1 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 181 x 851 x 1 x 56 x 1 = 129386040
Therefore, the lowest common multiple of 851,905,840,543 is 129386040.
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.
851 x 905 x 840 x 543 = 351283098600
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.
851 : 1, 23, 37, 851
905 : 1, 5, 181, 905
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
543 : 1, 3, 181, 543
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 851,905,840,543, is 1.
Now, the common factors can be found like this.
851:23x 37
905:5x 181
840:2x 2x 2x 3x 5x 7
543:3x 181
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 181 = 2715
Therefore, the value for common factors is 2715.
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 = 351283098600/(1x2715)
LCM = 351283098600/2715
LCM = 129386040
Thus, we can understand that the LCM of 851,905,840,543 is 129386040.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 851, 905, 840, 543
1. What is the LCM of 851, 905, 840, 543?
Answer: LCM of 851, 905, 840, 543 is 129386040.
2. How to calculate the LCM of 851, 905, 840, 543?
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 851, 905, 840, 543.
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}.