LCM of 421, 570, 961, 261
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 421, 570, 961, 261 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 421, 570, 961, 261. So, keep reading to learn more.
Given numbers are 421,570,961,261
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 421,570,961,261 is 20063171790.
Find LCM of 421,570,961,261 with Prime Factorization
| 3 | 421, 570, 961, 261 |
| 421, 190, 961, 87 |
Multiply the prime numbers at the bottom and the left side.
3 x 421 x 190 x 961 x 87 = 20063171790
Therefore, the lowest common multiple of 421,570,961,261 is 20063171790.
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.
421 x 570 x 961 x 261 = 60189515370
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.
421 : 1, 421
570 : 1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570
961 : 1, 31, 961
261 : 1, 3, 9, 29, 87, 261
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 421,570,961,261, is 1.
Now, the common factors can be found like this.
421:421
570:2x 3x 5x 19
961:31x 31
261:3x 3x 29
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3 = 3
Therefore, the value for common factors is 3.
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 = 60189515370/(1x3)
LCM = 60189515370/3
LCM = 20063171790
Thus, we can understand that the LCM of 421,570,961,261 is 20063171790.
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FAQs on LCM of 421, 570, 961, 261
1. What is the LCM of 421, 570, 961, 261?
Answer: LCM of 421, 570, 961, 261 is 20063171790.
2. How to calculate the LCM of 421, 570, 961, 261?
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 421, 570, 961, 261.
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}.