LCM of 705, 470, 989, 506
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 705, 470, 989, 506 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, 470, 989, 506. So, keep reading to learn more.
Given numbers are 705,470,989,506
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 705,470,989,506 is 15339390.
Find LCM of 705,470,989,506 with Prime Factorization
| 2 | 705, 470, 989, 506 |
| 5 | 705, 235, 989, 253 |
| 23 | 141, 47, 989, 253 |
| 47 | 141, 47, 43, 11 |
| 3, 1, 43, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 23 x 47 x 3 x 1 x 43 x 11 = 15339390
Therefore, the lowest common multiple of 705,470,989,506 is 15339390.
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 470 x 989 x 506 = 165818805900
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
470 : 1, 2, 5, 10, 47, 94, 235, 470
989 : 1, 23, 43, 989
506 : 1, 2, 11, 22, 23, 46, 253, 506
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 705,470,989,506, is 1.
Now, the common factors can be found like this.
705:3x 5x 47
470:2x 5x 47
989:23x 43
506:2x 11x 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 5x 23x 47 = 10810
Therefore, the value for common factors is 10810.
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 = 165818805900/(1x10810)
LCM = 165818805900/10810
LCM = 15339390
Thus, we can understand that the LCM of 705,470,989,506 is 15339390.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 705, 470, 989, 506
1. What is the LCM of 705, 470, 989, 506?
Answer: LCM of 705, 470, 989, 506 is 15339390.
2. How to calculate the LCM of 705, 470, 989, 506?
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, 470, 989, 506.
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}.