LCM of 646, 729, 961, 279
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 729, 961, 279 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 646, 729, 961, 279. So, keep reading to learn more.
Given numbers are 646,729,961,279
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,729,961,279 is 452567574.
Find LCM of 646,729,961,279 with Prime Factorization
| 3 | 646, 729, 961, 279 |
| 3 | 646, 243, 961, 93 |
| 31 | 646, 81, 961, 31 |
| 646, 81, 1, 31 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 31 x 646 x 81 x 1 x 31 = 452567574
Therefore, the lowest common multiple of 646,729,961,279 is 452567574.
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.
646 x 729 x 961 x 279 = 126266353146
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
729 : 1, 3, 9, 27, 81, 243, 729
961 : 1, 31, 961
279 : 1, 3, 9, 31, 93, 279
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,729,961,279, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
729:3x 3x 3x 3x 3x 3
961:31x 31
279:3x 3x 31
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 31 = 279
Therefore, the value for common factors is 279.
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 = 126266353146/(1x279)
LCM = 126266353146/279
LCM = 452567574
Thus, we can understand that the LCM of 646,729,961,279 is 452567574.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 646, 729, 961, 279
1. What is the LCM of 646, 729, 961, 279?
Answer: LCM of 646, 729, 961, 279 is 452567574.
2. How to calculate the LCM of 646, 729, 961, 279?
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 646, 729, 961, 279.
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}.