LCM of 728, 556, 311, 984, 445
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 728, 556, 311, 984, 445 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 728, 556, 311, 984, 445. So, keep reading to learn more.
Given numbers are 728,556,311,984,445
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 728,556,311,984,445 is 1722549421320.
Find LCM of 728,556,311,984,445 with Prime Factorization
| 2 | 728, 556, 311, 984, 445 |
| 2 | 364, 278, 311, 492, 445 |
| 2 | 182, 139, 311, 246, 445 |
| 91, 139, 311, 123, 445 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 91 x 139 x 311 x 123 x 445 = 1722549421320
Therefore, the lowest common multiple of 728,556,311,984,445 is 1722549421320.
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.
728 x 556 x 311 x 984 x 445 = 55121581482240
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.
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
556 : 1, 2, 4, 139, 278, 556
311 : 1, 311
984 : 1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984
445 : 1, 5, 89, 445
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 728,556,311,984,445, is 1.
Now, the common factors can be found like this.
728:2x 2x 2x 7x 13
556:2x 2x 139
311:311
984:2x 2x 2x 3x 41
445:5x 89
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 2x 2 = 32
Therefore, the value for common factors is 32.
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 = 55121581482240/(1x32)
LCM = 55121581482240/32
LCM = 1722549421320
Thus, we can understand that the LCM of 728,556,311,984,445 is 1722549421320.
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FAQs on LCM of 728, 556, 311, 984, 445
1. What is the LCM of 728, 556, 311, 984, 445?
Answer: LCM of 728, 556, 311, 984, 445 is 1722549421320.
2. How to calculate the LCM of 728, 556, 311, 984, 445?
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 728, 556, 311, 984, 445.
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}.