LCM of 660, 321, 638, 832
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 660, 321, 638, 832 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 660, 321, 638, 832. So, keep reading to learn more.
Given numbers are 660,321,638,832
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 660,321,638,832 is 425979840.
Find LCM of 660,321,638,832 with Prime Factorization
| 2 | 660, 321, 638, 832 |
| 2 | 330, 321, 319, 416 |
| 3 | 165, 321, 319, 208 |
| 11 | 55, 107, 319, 208 |
| 5, 107, 29, 208 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 11 x 5 x 107 x 29 x 208 = 425979840
Therefore, the lowest common multiple of 660,321,638,832 is 425979840.
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.
660 x 321 x 638 x 832 = 112458677760
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.
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
321 : 1, 3, 107, 321
638 : 1, 2, 11, 22, 29, 58, 319, 638
832 : 1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 660,321,638,832, is 1.
Now, the common factors can be found like this.
660:2x 2x 3x 5x 11
321:3x 107
638:2x 11x 29
832:2x 2x 2x 2x 2x 2x 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 2x 3x 11 = 264
Therefore, the value for common factors is 264.
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 = 112458677760/(1x264)
LCM = 112458677760/264
LCM = 425979840
Thus, we can understand that the LCM of 660,321,638,832 is 425979840.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 660, 321, 638, 832
1. What is the LCM of 660, 321, 638, 832?
Answer: LCM of 660, 321, 638, 832 is 425979840.
2. How to calculate the LCM of 660, 321, 638, 832?
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 660, 321, 638, 832.
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}.