LCM of 642, 548, 852, 856, 817
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 642, 548, 852, 856, 817 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 642, 548, 852, 856, 817. So, keep reading to learn more.
Given numbers are 642,548,852,856,817
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 642,548,852,856,817 is 20407790712.
Find LCM of 642,548,852,856,817 with Prime Factorization
| 2 | 642, 548, 852, 856, 817 |
| 2 | 321, 274, 426, 428, 817 |
| 3 | 321, 137, 213, 214, 817 |
| 107 | 107, 137, 71, 214, 817 |
| 1, 137, 71, 2, 817 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 107 x 1 x 137 x 71 x 2 x 817 = 20407790712
Therefore, the lowest common multiple of 642,548,852,856,817 is 20407790712.
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.
642 x 548 x 852 x 856 x 817 = 209628826193664
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.
642 : 1, 2, 3, 6, 107, 214, 321, 642
548 : 1, 2, 4, 137, 274, 548
852 : 1, 2, 3, 4, 6, 12, 71, 142, 213, 284, 426, 852
856 : 1, 2, 4, 8, 107, 214, 428, 856
817 : 1, 19, 43, 817
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,548,852,856,817, is 1.
Now, the common factors can be found like this.
642:2x 3x 107
548:2x 2x 137
852:2x 2x 3x 71
856:2x 2x 2x 107
817:19x 43
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 2x 3x 107 = 10272
Therefore, the value for common factors is 10272.
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 = 209628826193664/(1x10272)
LCM = 209628826193664/10272
LCM = 20407790712
Thus, we can understand that the LCM of 642,548,852,856,817 is 20407790712.
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FAQs on LCM of 642, 548, 852, 856, 817
1. What is the LCM of 642, 548, 852, 856, 817?
Answer: LCM of 642, 548, 852, 856, 817 is 20407790712.
2. How to calculate the LCM of 642, 548, 852, 856, 817?
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 642, 548, 852, 856, 817.
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}.