LCM of 47, 91, 49, 70, 861
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 47, 91, 49, 70, 861 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 47, 91, 49, 70, 861. So, keep reading to learn more.
Given numbers are 47,91,49,70,861
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 47,91,49,70,861 is 36824970.
Find LCM of 47,91,49,70,861 with Prime Factorization
| 7 | 47, 91, 49, 70, 861 |
| 47, 13, 7, 10, 123 |
Multiply the prime numbers at the bottom and the left side.
7 x 47 x 13 x 7 x 10 x 123 = 36824970
Therefore, the lowest common multiple of 47,91,49,70,861 is 36824970.
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.
47 x 91 x 49 x 70 x 861 = 12630964710
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.
47 : 1, 47
91 : 1, 7, 13, 91
49 : 1, 7, 49
70 : 1, 2, 5, 7, 10, 14, 35, 70
861 : 1, 3, 7, 21, 41, 123, 287, 861
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 47,91,49,70,861, is 1.
Now, the common factors can be found like this.
47:47
91:7x 13
49:7x 7
70:2x 5x 7
861:3x 7x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 7x 7 = 343
Therefore, the value for common factors is 343.
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 = 12630964710/(1x343)
LCM = 12630964710/343
LCM = 36824970
Thus, we can understand that the LCM of 47,91,49,70,861 is 36824970.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 47, 91, 49, 70, 861
1. What is the LCM of 47, 91, 49, 70, 861?
Answer: LCM of 47, 91, 49, 70, 861 is 36824970.
2. How to calculate the LCM of 47, 91, 49, 70, 861?
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 47, 91, 49, 70, 861.
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}.