LCM of 780, 806, 864, 419
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 780, 806, 864, 419 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 780, 806, 864, 419. So, keep reading to learn more.
Given numbers are 780,806,864,419
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 780,806,864,419 is 729462240.
Find LCM of 780,806,864,419 with Prime Factorization
| 2 | 780, 806, 864, 419 |
| 2 | 390, 403, 432, 419 |
| 3 | 195, 403, 216, 419 |
| 13 | 65, 403, 72, 419 |
| 5, 31, 72, 419 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 13 x 5 x 31 x 72 x 419 = 729462240
Therefore, the lowest common multiple of 780,806,864,419 is 729462240.
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.
780 x 806 x 864 x 419 = 227592218880
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.
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
806 : 1, 2, 13, 26, 31, 62, 403, 806
864 : 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 96, 108, 144, 216, 288, 432, 864
419 : 1, 419
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,806,864,419, is 1.
Now, the common factors can be found like this.
780:2x 2x 3x 5x 13
806:2x 13x 31
864:2x 2x 2x 2x 2x 3x 3x 3
419:419
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 13 = 312
Therefore, the value for common factors is 312.
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 = 227592218880/(1x312)
LCM = 227592218880/312
LCM = 729462240
Thus, we can understand that the LCM of 780,806,864,419 is 729462240.
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FAQs on LCM of 780, 806, 864, 419
1. What is the LCM of 780, 806, 864, 419?
Answer: LCM of 780, 806, 864, 419 is 729462240.
2. How to calculate the LCM of 780, 806, 864, 419?
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 780, 806, 864, 419.
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}.