LCM of 635, 640, 381, 156
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 635, 640, 381, 156 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 635, 640, 381, 156. So, keep reading to learn more.
Given numbers are 635,640,381,156
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 635,640,381,156 is 3169920.
Find LCM of 635,640,381,156 with Prime Factorization
| 2 | 635, 640, 381, 156 |
| 2 | 635, 320, 381, 78 |
| 3 | 635, 160, 381, 39 |
| 5 | 635, 160, 127, 13 |
| 127 | 127, 32, 127, 13 |
| 1, 32, 1, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 127 x 1 x 32 x 1 x 13 = 3169920
Therefore, the lowest common multiple of 635,640,381,156 is 3169920.
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.
635 x 640 x 381 x 156 = 24154790400
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.
635 : 1, 5, 127, 635
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
381 : 1, 3, 127, 381
156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 635,640,381,156, is 1.
Now, the common factors can be found like this.
635:5x 127
640:2x 2x 2x 2x 2x 2x 2x 5
381:3x 127
156:2x 2x 3x 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 2x 3x 5x 127 = 7620
Therefore, the value for common factors is 7620.
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 = 24154790400/(1x7620)
LCM = 24154790400/7620
LCM = 3169920
Thus, we can understand that the LCM of 635,640,381,156 is 3169920.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 635, 640, 381, 156
1. What is the LCM of 635, 640, 381, 156?
Answer: LCM of 635, 640, 381, 156 is 3169920.
2. How to calculate the LCM of 635, 640, 381, 156?
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 635, 640, 381, 156.
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}.