LCM of 780, 649, 328, 440
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 780, 649, 328, 440 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, 649, 328, 440. So, keep reading to learn more.
Given numbers are 780,649,328,440
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 780,649,328,440 is 41510040.
Find LCM of 780,649,328,440 with Prime Factorization
| 2 | 780, 649, 328, 440 |
| 2 | 390, 649, 164, 220 |
| 2 | 195, 649, 82, 110 |
| 5 | 195, 649, 41, 55 |
| 11 | 39, 649, 41, 11 |
| 39, 59, 41, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 5 x 11 x 39 x 59 x 41 x 1 = 41510040
Therefore, the lowest common multiple of 780,649,328,440 is 41510040.
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 649 x 328 x 440 = 73057670400
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
649 : 1, 11, 59, 649
328 : 1, 2, 4, 8, 41, 82, 164, 328
440 : 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,649,328,440, is 1.
Now, the common factors can be found like this.
780:2x 2x 3x 5x 13
649:11x 59
328:2x 2x 2x 41
440:2x 2x 2x 5x 11
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 5x 11 = 1760
Therefore, the value for common factors is 1760.
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 = 73057670400/(1x1760)
LCM = 73057670400/1760
LCM = 41510040
Thus, we can understand that the LCM of 780,649,328,440 is 41510040.
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FAQs on LCM of 780, 649, 328, 440
1. What is the LCM of 780, 649, 328, 440?
Answer: LCM of 780, 649, 328, 440 is 41510040.
2. How to calculate the LCM of 780, 649, 328, 440?
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, 649, 328, 440.
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}.