LCM of 777, 916, 208, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 777, 916, 208, 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 777, 916, 208, 642. So, keep reading to learn more.
Given numbers are 777,916,208,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 777,916,208,642 is 3960076848.
Find LCM of 777,916,208,642 with Prime Factorization
| 2 | 777, 916, 208, 642 |
| 2 | 777, 458, 104, 321 |
| 3 | 777, 229, 52, 321 |
| 259, 229, 52, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 259 x 229 x 52 x 107 = 3960076848
Therefore, the lowest common multiple of 777,916,208,642 is 3960076848.
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.
777 x 916 x 208 x 642 = 95041844352
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.
777 : 1, 3, 7, 21, 37, 111, 259, 777
916 : 1, 2, 4, 229, 458, 916
208 : 1, 2, 4, 8, 13, 16, 26, 52, 104, 208
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 777,916,208,642, is 1.
Now, the common factors can be found like this.
777:3x 7x 37
916:2x 2x 229
208:2x 2x 2x 2x 13
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 2x 2x 3 = 24
Therefore, the value for common factors is 24.
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 = 95041844352/(1x24)
LCM = 95041844352/24
LCM = 3960076848
Thus, we can understand that the LCM of 777,916,208,642 is 3960076848.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 777, 916, 208, 642
1. What is the LCM of 777, 916, 208, 642?
Answer: LCM of 777, 916, 208, 642 is 3960076848.
2. How to calculate the LCM of 777, 916, 208, 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 777, 916, 208, 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}.