LCM of 777, 405, 420, 124
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 777, 405, 420, 124 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, 405, 420, 124. So, keep reading to learn more.
Given numbers are 777,405,420,124
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 777,405,420,124 is 13006980.
Find LCM of 777,405,420,124 with Prime Factorization
| 2 | 777, 405, 420, 124 |
| 2 | 777, 405, 210, 62 |
| 3 | 777, 405, 105, 31 |
| 5 | 259, 135, 35, 31 |
| 7 | 259, 27, 7, 31 |
| 37, 27, 1, 31 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 37 x 27 x 1 x 31 = 13006980
Therefore, the lowest common multiple of 777,405,420,124 is 13006980.
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 405 x 420 x 124 = 16388794800
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
405 : 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
124 : 1, 2, 4, 31, 62, 124
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 777,405,420,124, is 1.
Now, the common factors can be found like this.
777:3x 7x 37
405:3x 3x 3x 3x 5
420:2x 2x 3x 5x 7
124:2x 2x 31
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 3x 3x 5x 7 = 1260
Therefore, the value for common factors is 1260.
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 = 16388794800/(1x1260)
LCM = 16388794800/1260
LCM = 13006980
Thus, we can understand that the LCM of 777,405,420,124 is 13006980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 777, 405, 420, 124
1. What is the LCM of 777, 405, 420, 124?
Answer: LCM of 777, 405, 420, 124 is 13006980.
2. How to calculate the LCM of 777, 405, 420, 124?
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, 405, 420, 124.
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}.