LCM of 368, 138, 921, 945, 813
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 368, 138, 921, 945, 813 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 368, 138, 921, 945, 813. So, keep reading to learn more.
Given numbers are 368,138,921,945,813
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 368,138,921,945,813 is 28932588720.
Find LCM of 368,138,921,945,813 with Prime Factorization
| 2 | 368, 138, 921, 945, 813 |
| 3 | 184, 69, 921, 945, 813 |
| 23 | 184, 23, 307, 315, 271 |
| 8, 1, 307, 315, 271 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 23 x 8 x 1 x 307 x 315 x 271 = 28932588720
Therefore, the lowest common multiple of 368,138,921,945,813 is 28932588720.
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.
368 x 138 x 921 x 945 x 813 = 35934275190240
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.
368 : 1, 2, 4, 8, 16, 23, 46, 92, 184, 368
138 : 1, 2, 3, 6, 23, 46, 69, 138
921 : 1, 3, 307, 921
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
813 : 1, 3, 271, 813
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 368,138,921,945,813, is 1.
Now, the common factors can be found like this.
368:2x 2x 2x 2x 23
138:2x 3x 23
921:3x 307
945:3x 3x 3x 5x 7
813:3x 271
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 3x 23 = 1242
Therefore, the value for common factors is 1242.
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 = 35934275190240/(1x1242)
LCM = 35934275190240/1242
LCM = 28932588720
Thus, we can understand that the LCM of 368,138,921,945,813 is 28932588720.
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FAQs on LCM of 368, 138, 921, 945, 813
1. What is the LCM of 368, 138, 921, 945, 813?
Answer: LCM of 368, 138, 921, 945, 813 is 28932588720.
2. How to calculate the LCM of 368, 138, 921, 945, 813?
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 368, 138, 921, 945, 813.
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}.