LCM of 680, 858, 676, 405
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 680, 858, 676, 405 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 680, 858, 676, 405. So, keep reading to learn more.
Given numbers are 680,858,676,405
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 680,858,676,405 is 102393720.
Find LCM of 680,858,676,405 with Prime Factorization
| 2 | 680, 858, 676, 405 |
| 2 | 340, 429, 338, 405 |
| 3 | 170, 429, 169, 405 |
| 5 | 170, 143, 169, 135 |
| 13 | 34, 143, 169, 27 |
| 34, 11, 13, 27 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 13 x 34 x 11 x 13 x 27 = 102393720
Therefore, the lowest common multiple of 680,858,676,405 is 102393720.
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.
680 x 858 x 676 x 405 = 159734203200
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.
680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
676 : 1, 2, 4, 13, 26, 52, 169, 338, 676
405 : 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 680,858,676,405, is 1.
Now, the common factors can be found like this.
680:2x 2x 2x 5x 17
858:2x 3x 11x 13
676:2x 2x 13x 13
405:3x 3x 3x 3x 5
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 3x 5x 13 = 1560
Therefore, the value for common factors is 1560.
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 = 159734203200/(1x1560)
LCM = 159734203200/1560
LCM = 102393720
Thus, we can understand that the LCM of 680,858,676,405 is 102393720.
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FAQs on LCM of 680, 858, 676, 405
1. What is the LCM of 680, 858, 676, 405?
Answer: LCM of 680, 858, 676, 405 is 102393720.
2. How to calculate the LCM of 680, 858, 676, 405?
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 680, 858, 676, 405.
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}.