LCM of 811, 703, 847, 660, 646
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 811, 703, 847, 660, 646 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 811, 703, 847, 660, 646. So, keep reading to learn more.
Given numbers are 811,703,847,660,646
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 811,703,847,660,646 is 492560704020.
Find LCM of 811,703,847,660,646 with Prime Factorization
| 2 | 811, 703, 847, 660, 646 |
| 11 | 811, 703, 847, 330, 323 |
| 19 | 811, 703, 77, 30, 323 |
| 811, 37, 77, 30, 17 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 19 x 811 x 37 x 77 x 30 x 17 = 492560704020
Therefore, the lowest common multiple of 811,703,847,660,646 is 492560704020.
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.
811 x 703 x 847 x 660 x 646 = 205890374280360
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.
811 : 1, 811
703 : 1, 19, 37, 703
847 : 1, 7, 11, 77, 121, 847
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
646 : 1, 2, 17, 19, 34, 38, 323, 646
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 811,703,847,660,646, is 1.
Now, the common factors can be found like this.
811:811
703:19x 37
847:7x 11x 11
660:2x 2x 3x 5x 11
646:2x 17x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11x 19 = 418
Therefore, the value for common factors is 418.
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 = 205890374280360/(1x418)
LCM = 205890374280360/418
LCM = 492560704020
Thus, we can understand that the LCM of 811,703,847,660,646 is 492560704020.
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FAQs on LCM of 811, 703, 847, 660, 646
1. What is the LCM of 811, 703, 847, 660, 646?
Answer: LCM of 811, 703, 847, 660, 646 is 492560704020.
2. How to calculate the LCM of 811, 703, 847, 660, 646?
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 811, 703, 847, 660, 646.
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}.