LCM of 833, 206, 420, 640
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 833, 206, 420, 640 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 833, 206, 420, 640. So, keep reading to learn more.
Given numbers are 833,206,420,640
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 833,206,420,640 is 164734080.
Find LCM of 833,206,420,640 with Prime Factorization
| 2 | 833, 206, 420, 640 |
| 2 | 833, 103, 210, 320 |
| 5 | 833, 103, 105, 160 |
| 7 | 833, 103, 21, 32 |
| 119, 103, 3, 32 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 119 x 103 x 3 x 32 = 164734080
Therefore, the lowest common multiple of 833,206,420,640 is 164734080.
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.
833 x 206 x 420 x 640 = 46125542400
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.
833 : 1, 7, 17, 49, 119, 833
206 : 1, 2, 103, 206
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 833,206,420,640, is 1.
Now, the common factors can be found like this.
833:7x 7x 17
206:2x 103
420:2x 2x 3x 5x 7
640:2x 2x 2x 2x 2x 2x 2x 5
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 5x 7 = 280
Therefore, the value for common factors is 280.
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 = 46125542400/(1x280)
LCM = 46125542400/280
LCM = 164734080
Thus, we can understand that the LCM of 833,206,420,640 is 164734080.
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FAQs on LCM of 833, 206, 420, 640
1. What is the LCM of 833, 206, 420, 640?
Answer: LCM of 833, 206, 420, 640 is 164734080.
2. How to calculate the LCM of 833, 206, 420, 640?
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 833, 206, 420, 640.
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}.