LCM of 422, 640, 682, 640, 305
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 422, 640, 682, 640, 305 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 422, 640, 682, 640, 305. So, keep reading to learn more.
Given numbers are 422,640,682,640,305
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 422,640,682,640,305 is 2808967040.
Find LCM of 422,640,682,640,305 with Prime Factorization
| 2 | 422, 640, 682, 640, 305 |
| 2 | 211, 320, 341, 320, 305 |
| 2 | 211, 160, 341, 160, 305 |
| 2 | 211, 80, 341, 80, 305 |
| 2 | 211, 40, 341, 40, 305 |
| 2 | 211, 20, 341, 20, 305 |
| 2 | 211, 10, 341, 10, 305 |
| 5 | 211, 5, 341, 5, 305 |
| 211, 1, 341, 1, 61 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 2 x 2 x 2 x 2 x 5 x 211 x 1 x 341 x 1 x 61 = 2808967040
Therefore, the lowest common multiple of 422,640,682,640,305 is 2808967040.
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.
422 x 640 x 682 x 640 x 305 = 35954778112000
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.
422 : 1, 2, 211, 422
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
682 : 1, 2, 11, 22, 31, 62, 341, 682
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
305 : 1, 5, 61, 305
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 422,640,682,640,305, is 1.
Now, the common factors can be found like this.
422:2x 211
640:2x 2x 2x 2x 2x 2x 2x 5
682:2x 11x 31
640:2x 2x 2x 2x 2x 2x 2x 5
305:5x 61
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 2x 2x 2x 2x 5x 5 = 12800
Therefore, the value for common factors is 12800.
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 = 35954778112000/(1x12800)
LCM = 35954778112000/12800
LCM = 2808967040
Thus, we can understand that the LCM of 422,640,682,640,305 is 2808967040.
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FAQs on LCM of 422, 640, 682, 640, 305
1. What is the LCM of 422, 640, 682, 640, 305?
Answer: LCM of 422, 640, 682, 640, 305 is 2808967040.
2. How to calculate the LCM of 422, 640, 682, 640, 305?
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 422, 640, 682, 640, 305.
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}.