LCM of 961, 249, 221, 442
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 961, 249, 221, 442 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 961, 249, 221, 442. So, keep reading to learn more.
Given numbers are 961,249,221,442
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 961,249,221,442 is 105765738.
Find LCM of 961,249,221,442 with Prime Factorization
| 13 | 961, 249, 221, 442 |
| 17 | 961, 249, 17, 34 |
| 961, 249, 1, 2 |
Multiply the prime numbers at the bottom and the left side.
13 x 17 x 961 x 249 x 1 x 2 = 105765738
Therefore, the lowest common multiple of 961,249,221,442 is 105765738.
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.
961 x 249 x 221 x 442 = 23374228098
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.
961 : 1, 31, 961
249 : 1, 3, 83, 249
221 : 1, 13, 17, 221
442 : 1, 2, 13, 17, 26, 34, 221, 442
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 961,249,221,442, is 1.
Now, the common factors can be found like this.
961:31x 31
249:3x 83
221:13x 17
442:2x 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 = 23374228098/(1x221)
LCM = 23374228098/221
LCM = 105765738
Thus, we can understand that the LCM of 961,249,221,442 is 105765738.
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FAQs on LCM of 961, 249, 221, 442
1. What is the LCM of 961, 249, 221, 442?
Answer: LCM of 961, 249, 221, 442 is 105765738.
2. How to calculate the LCM of 961, 249, 221, 442?
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 961, 249, 221, 442.
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}.