LCM of 705, 220, 878, 460
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 705, 220, 878, 460 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 705, 220, 878, 460. So, keep reading to learn more.
Given numbers are 705,220,878,460
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 705,220,878,460 is 313208940.
Find LCM of 705,220,878,460 with Prime Factorization
| 2 | 705, 220, 878, 460 |
| 2 | 705, 110, 439, 230 |
| 5 | 705, 55, 439, 115 |
| 141, 11, 439, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 141 x 11 x 439 x 23 = 313208940
Therefore, the lowest common multiple of 705,220,878,460 is 313208940.
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.
705 x 220 x 878 x 460 = 62641788000
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.
705 : 1, 3, 5, 15, 47, 141, 235, 705
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
878 : 1, 2, 439, 878
460 : 1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 705,220,878,460, is 1.
Now, the common factors can be found like this.
705:3x 5x 47
220:2x 2x 5x 11
878:2x 439
460:2x 2x 5x 23
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 5 = 200
Therefore, the value for common factors is 200.
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 = 62641788000/(1x200)
LCM = 62641788000/200
LCM = 313208940
Thus, we can understand that the LCM of 705,220,878,460 is 313208940.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 705, 220, 878, 460
1. What is the LCM of 705, 220, 878, 460?
Answer: LCM of 705, 220, 878, 460 is 313208940.
2. How to calculate the LCM of 705, 220, 878, 460?
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 705, 220, 878, 460.
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}.