LCM of 821, 738, 108, 226, 686
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 821, 738, 108, 226, 686 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 821, 738, 108, 226, 686. So, keep reading to learn more.
Given numbers are 821,738,108,226,686
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 821,738,108,226,686 is 140904003492.
Find LCM of 821,738,108,226,686 with Prime Factorization
| 2 | 821, 738, 108, 226, 686 |
| 3 | 821, 369, 54, 113, 343 |
| 3 | 821, 123, 18, 113, 343 |
| 821, 41, 6, 113, 343 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 821 x 41 x 6 x 113 x 343 = 140904003492
Therefore, the lowest common multiple of 821,738,108,226,686 is 140904003492.
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.
821 x 738 x 108 x 226 x 686 = 10145088251424
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.
821 : 1, 821
738 : 1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738
108 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
226 : 1, 2, 113, 226
686 : 1, 2, 7, 14, 49, 98, 343, 686
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 821,738,108,226,686, is 1.
Now, the common factors can be found like this.
821:821
738:2x 3x 3x 41
108:2x 2x 3x 3x 3
226:2x 113
686:2x 7x 7x 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 2x 3x 3 = 72
Therefore, the value for common factors is 72.
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 = 10145088251424/(1x72)
LCM = 10145088251424/72
LCM = 140904003492
Thus, we can understand that the LCM of 821,738,108,226,686 is 140904003492.
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FAQs on LCM of 821, 738, 108, 226, 686
1. What is the LCM of 821, 738, 108, 226, 686?
Answer: LCM of 821, 738, 108, 226, 686 is 140904003492.
2. How to calculate the LCM of 821, 738, 108, 226, 686?
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 821, 738, 108, 226, 686.
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}.