LCM of 795, 789, 305, 640, 390
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 795, 789, 305, 640, 390 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 795, 789, 305, 640, 390. So, keep reading to learn more.
Given numbers are 795,789,305,640,390
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 795,789,305,640,390 is 21222963840.
Find LCM of 795,789,305,640,390 with Prime Factorization
| 2 | 795, 789, 305, 640, 390 |
| 3 | 795, 789, 305, 320, 195 |
| 5 | 265, 263, 305, 320, 65 |
| 53, 263, 61, 64, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 53 x 263 x 61 x 64 x 13 = 21222963840
Therefore, the lowest common multiple of 795,789,305,640,390 is 21222963840.
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.
795 x 789 x 305 x 640 x 390 = 47751668640000
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.
795 : 1, 3, 5, 15, 53, 159, 265, 795
789 : 1, 3, 263, 789
305 : 1, 5, 61, 305
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 795,789,305,640,390, is 1.
Now, the common factors can be found like this.
795:3x 5x 53
789:3x 263
305:5x 61
640:2x 2x 2x 2x 2x 2x 2x 5
390:2x 3x 5x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 5x 5x 5 = 2250
Therefore, the value for common factors is 2250.
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 = 47751668640000/(1x2250)
LCM = 47751668640000/2250
LCM = 21222963840
Thus, we can understand that the LCM of 795,789,305,640,390 is 21222963840.
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FAQs on LCM of 795, 789, 305, 640, 390
1. What is the LCM of 795, 789, 305, 640, 390?
Answer: LCM of 795, 789, 305, 640, 390 is 21222963840.
2. How to calculate the LCM of 795, 789, 305, 640, 390?
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 795, 789, 305, 640, 390.
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}.