LCM of 961, 445, 267, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 961, 445, 267, 642 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, 445, 267, 642. So, keep reading to learn more.
Given numbers are 961,445,267,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 961,445,267,642 is 274548090.
Find LCM of 961,445,267,642 with Prime Factorization
| 3 | 961, 445, 267, 642 |
| 89 | 961, 445, 89, 214 |
| 961, 5, 1, 214 |
Multiply the prime numbers at the bottom and the left side.
3 x 89 x 961 x 5 x 1 x 214 = 274548090
Therefore, the lowest common multiple of 961,445,267,642 is 274548090.
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 445 x 267 x 642 = 73304340030
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
445 : 1, 5, 89, 445
267 : 1, 3, 89, 267
642 : 1, 2, 3, 6, 107, 214, 321, 642
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 961,445,267,642, is 1.
Now, the common factors can be found like this.
961:31x 31
445:5x 89
267:3x 89
642:2x 3x 107
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 89 = 267
Therefore, the value for common factors is 267.
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 = 73304340030/(1x267)
LCM = 73304340030/267
LCM = 274548090
Thus, we can understand that the LCM of 961,445,267,642 is 274548090.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 961, 445, 267, 642
1. What is the LCM of 961, 445, 267, 642?
Answer: LCM of 961, 445, 267, 642 is 274548090.
2. How to calculate the LCM of 961, 445, 267, 642?
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, 445, 267, 642.
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}.