LCM of 162, 351, 193, 689
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 162, 351, 193, 689 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 162, 351, 193, 689. So, keep reading to learn more.
Given numbers are 162,351,193,689
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 162,351,193,689 is 21542274.
Find LCM of 162,351,193,689 with Prime Factorization
| 3 | 162, 351, 193, 689 |
| 3 | 54, 117, 193, 689 |
| 3 | 18, 39, 193, 689 |
| 13 | 6, 13, 193, 689 |
| 6, 1, 193, 53 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 3 x 13 x 6 x 1 x 193 x 53 = 21542274
Therefore, the lowest common multiple of 162,351,193,689 is 21542274.
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.
162 x 351 x 193 x 689 = 7561338174
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.
162 : 1, 2, 3, 6, 9, 18, 27, 54, 81, 162
351 : 1, 3, 9, 13, 27, 39, 117, 351
193 : 1, 193
689 : 1, 13, 53, 689
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 162,351,193,689, is 1.
Now, the common factors can be found like this.
162:2x 3x 3x 3x 3
351:3x 3x 3x 13
193:193
689:13x 53
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3x 13 = 351
Therefore, the value for common factors is 351.
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 = 7561338174/(1x351)
LCM = 7561338174/351
LCM = 21542274
Thus, we can understand that the LCM of 162,351,193,689 is 21542274.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 162, 351, 193, 689
1. What is the LCM of 162, 351, 193, 689?
Answer: LCM of 162, 351, 193, 689 is 21542274.
2. How to calculate the LCM of 162, 351, 193, 689?
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 162, 351, 193, 689.
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}.