LCM of 169, 289, 821, 221
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 169, 289, 821, 221 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 169, 289, 821, 221. So, keep reading to learn more.
Given numbers are 169,289,821,221
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 169,289,821,221 is 40098461.
Find LCM of 169,289,821,221 with Prime Factorization
| 13 | 169, 289, 821, 221 |
| 17 | 13, 289, 821, 17 |
| 13, 1, 821, 17 |
Multiply the prime numbers at the bottom and the left side.
13 x 17 x 13 x 1 x 821 x 17 = 40098461
Therefore, the lowest common multiple of 169,289,821,221 is 40098461.
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.
169 x 289 x 821 x 221 = 8861759881
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.
169 : 1, 13, 169
289 : 1, 17, 289
821 : 1, 821
221 : 1, 13, 17, 221
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 169,289,821,221, is 1.
Now, the common factors can be found like this.
169:13x 13
289:17x 17
821:821
221:13x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
13x 17 = 221
Therefore, the value for common factors is 221.
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 = 8861759881/(1x221)
LCM = 8861759881/221
LCM = 40098461
Thus, we can understand that the LCM of 169,289,821,221 is 40098461.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 169, 289, 821, 221
1. What is the LCM of 169, 289, 821, 221?
Answer: LCM of 169, 289, 821, 221 is 40098461.
2. How to calculate the LCM of 169, 289, 821, 221?
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 169, 289, 821, 221.
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}.