LCM of 168, 103, 921, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 168, 103, 921, 561 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 168, 103, 921, 561. So, keep reading to learn more.
Given numbers are 168,103,921,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 168,103,921,561 is 993405336.
Find LCM of 168,103,921,561 with Prime Factorization
| 3 | 168, 103, 921, 561 |
| 56, 103, 307, 187 |
Multiply the prime numbers at the bottom and the left side.
3 x 56 x 103 x 307 x 187 = 993405336
Therefore, the lowest common multiple of 168,103,921,561 is 993405336.
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.
168 x 103 x 921 x 561 = 8940648024
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.
168 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
103 : 1, 103
921 : 1, 3, 307, 921
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 168,103,921,561, is 1.
Now, the common factors can be found like this.
168:2x 2x 2x 3x 7
103:103
921:3x 307
561:3x 11x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3 = 9
Therefore, the value for common factors is 9.
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 = 8940648024/(1x9)
LCM = 8940648024/9
LCM = 993405336
Thus, we can understand that the LCM of 168,103,921,561 is 993405336.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 168, 103, 921, 561
1. What is the LCM of 168, 103, 921, 561?
Answer: LCM of 168, 103, 921, 561 is 993405336.
2. How to calculate the LCM of 168, 103, 921, 561?
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 168, 103, 921, 561.
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}.