LCM of 844, 721, 802, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 844, 721, 802, 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 844, 721, 802, 642. So, keep reading to learn more.
Given numbers are 844,721,802,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 844,721,802,642 is 78329817804.
Find LCM of 844,721,802,642 with Prime Factorization
| 2 | 844, 721, 802, 642 |
| 422, 721, 401, 321 |
Multiply the prime numbers at the bottom and the left side.
2 x 422 x 721 x 401 x 321 = 78329817804
Therefore, the lowest common multiple of 844,721,802,642 is 78329817804.
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.
844 x 721 x 802 x 642 = 313319271216
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.
844 : 1, 2, 4, 211, 422, 844
721 : 1, 7, 103, 721
802 : 1, 2, 401, 802
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 844,721,802,642, is 1.
Now, the common factors can be found like this.
844:2x 2x 211
721:7x 103
802:2x 401
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.
2x 2 = 4
Therefore, the value for common factors is 4.
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 = 313319271216/(1x4)
LCM = 313319271216/4
LCM = 78329817804
Thus, we can understand that the LCM of 844,721,802,642 is 78329817804.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 844, 721, 802, 642
1. What is the LCM of 844, 721, 802, 642?
Answer: LCM of 844, 721, 802, 642 is 78329817804.
2. How to calculate the LCM of 844, 721, 802, 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 844, 721, 802, 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}.