LCM of 403, 155, 305, 380
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 403, 155, 305, 380 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 403, 155, 305, 380. So, keep reading to learn more.
Given numbers are 403,155,305,380
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 403,155,305,380 is 9341540.
Find LCM of 403,155,305,380 with Prime Factorization
| 5 | 403, 155, 305, 380 |
| 31 | 403, 31, 61, 76 |
| 13, 1, 61, 76 |
Multiply the prime numbers at the bottom and the left side.
5 x 31 x 13 x 1 x 61 x 76 = 9341540
Therefore, the lowest common multiple of 403,155,305,380 is 9341540.
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.
403 x 155 x 305 x 380 = 7239693500
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.
403 : 1, 13, 31, 403
155 : 1, 5, 31, 155
305 : 1, 5, 61, 305
380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 403,155,305,380, is 1.
Now, the common factors can be found like this.
403:13x 31
155:5x 31
305:5x 61
380:2x 2x 5x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 5x 31 = 775
Therefore, the value for common factors is 775.
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 = 7239693500/(1x775)
LCM = 7239693500/775
LCM = 9341540
Thus, we can understand that the LCM of 403,155,305,380 is 9341540.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 403, 155, 305, 380
1. What is the LCM of 403, 155, 305, 380?
Answer: LCM of 403, 155, 305, 380 is 9341540.
2. How to calculate the LCM of 403, 155, 305, 380?
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 403, 155, 305, 380.
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}.