LCM of 571, 153, 221, 638
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 571, 153, 221, 638 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 571, 153, 221, 638. So, keep reading to learn more.
Given numbers are 571,153,221,638
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 571,153,221,638 is 724588722.
Find LCM of 571,153,221,638 with Prime Factorization
| 17 | 571, 153, 221, 638 |
| 571, 9, 13, 638 |
Multiply the prime numbers at the bottom and the left side.
17 x 571 x 9 x 13 x 638 = 724588722
Therefore, the lowest common multiple of 571,153,221,638 is 724588722.
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.
571 x 153 x 221 x 638 = 12318008274
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.
571 : 1, 571
153 : 1, 3, 9, 17, 51, 153
221 : 1, 13, 17, 221
638 : 1, 2, 11, 22, 29, 58, 319, 638
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 571,153,221,638, is 1.
Now, the common factors can be found like this.
571:571
153:3x 3x 17
221:13x 17
638:2x 11x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
17 = 17
Therefore, the value for common factors is 17.
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 = 12318008274/(1x17)
LCM = 12318008274/17
LCM = 724588722
Thus, we can understand that the LCM of 571,153,221,638 is 724588722.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 571, 153, 221, 638
1. What is the LCM of 571, 153, 221, 638?
Answer: LCM of 571, 153, 221, 638 is 724588722.
2. How to calculate the LCM of 571, 153, 221, 638?
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 571, 153, 221, 638.
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}.