LCM of 775, 989, 172, 161, 945
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 775, 989, 172, 161, 945 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 775, 989, 172, 161, 945. So, keep reading to learn more.
Given numbers are 775,989,172,161,945
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 775,989,172,161,945 is 579455100.
Find LCM of 775,989,172,161,945 with Prime Factorization
| 5 | 775, 989, 172, 161, 945 |
| 7 | 155, 989, 172, 161, 189 |
| 23 | 155, 989, 172, 23, 27 |
| 43 | 155, 43, 172, 1, 27 |
| 155, 1, 4, 1, 27 |
Multiply the prime numbers at the bottom and the left side.
5 x 7 x 23 x 43 x 155 x 1 x 4 x 1 x 27 = 579455100
Therefore, the lowest common multiple of 775,989,172,161,945 is 579455100.
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.
775 x 989 x 172 x 161 x 945 = 20057838286500
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.
775 : 1, 5, 25, 31, 155, 775
989 : 1, 23, 43, 989
172 : 1, 2, 4, 43, 86, 172
161 : 1, 7, 23, 161
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 775,989,172,161,945, is 1.
Now, the common factors can be found like this.
775:5x 5x 31
989:23x 43
172:2x 2x 43
161:7x 23
945:3x 3x 3x 5x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 7x 23x 43 = 34615
Therefore, the value for common factors is 34615.
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 = 20057838286500/(1x34615)
LCM = 20057838286500/34615
LCM = 579455100
Thus, we can understand that the LCM of 775,989,172,161,945 is 579455100.
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FAQs on LCM of 775, 989, 172, 161, 945
1. What is the LCM of 775, 989, 172, 161, 945?
Answer: LCM of 775, 989, 172, 161, 945 is 579455100.
2. How to calculate the LCM of 775, 989, 172, 161, 945?
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 775, 989, 172, 161, 945.
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}.