LCM of 489, 770, 393, 742
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 489, 770, 393, 742 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 489, 770, 393, 742. So, keep reading to learn more.
Given numbers are 489,770,393,742
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 489,770,393,742 is 2614247790.
Find LCM of 489,770,393,742 with Prime Factorization
| 2 | 489, 770, 393, 742 |
| 3 | 489, 385, 393, 371 |
| 7 | 163, 385, 131, 371 |
| 163, 55, 131, 53 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 163 x 55 x 131 x 53 = 2614247790
Therefore, the lowest common multiple of 489,770,393,742 is 2614247790.
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.
489 x 770 x 393 x 742 = 109798407180
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.
489 : 1, 3, 163, 489
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
393 : 1, 3, 131, 393
742 : 1, 2, 7, 14, 53, 106, 371, 742
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 489,770,393,742, is 1.
Now, the common factors can be found like this.
489:3x 163
770:2x 5x 7x 11
393:3x 131
742:2x 7x 53
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 7 = 42
Therefore, the value for common factors is 42.
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 = 109798407180/(1x42)
LCM = 109798407180/42
LCM = 2614247790
Thus, we can understand that the LCM of 489,770,393,742 is 2614247790.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 489, 770, 393, 742
1. What is the LCM of 489, 770, 393, 742?
Answer: LCM of 489, 770, 393, 742 is 2614247790.
2. How to calculate the LCM of 489, 770, 393, 742?
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 489, 770, 393, 742.
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}.