LCM of 905, 981, 556, 456, 380
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 905, 981, 556, 456, 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 905, 981, 556, 456, 380. So, keep reading to learn more.
Given numbers are 905,981,556,456,380
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 905,981,556,456,380 is 18757544040.
Find LCM of 905,981,556,456,380 with Prime Factorization
| 2 | 905, 981, 556, 456, 380 |
| 2 | 905, 981, 278, 228, 190 |
| 3 | 905, 981, 139, 114, 95 |
| 5 | 905, 327, 139, 38, 95 |
| 19 | 181, 327, 139, 38, 19 |
| 181, 327, 139, 2, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 19 x 181 x 327 x 139 x 2 x 1 = 18757544040
Therefore, the lowest common multiple of 905,981,556,456,380 is 18757544040.
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.
905 x 981 x 556 x 456 x 380 = 85534400822400
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.
905 : 1, 5, 181, 905
981 : 1, 3, 9, 109, 327, 981
556 : 1, 2, 4, 139, 278, 556
456 : 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
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 905,981,556,456,380, is 1.
Now, the common factors can be found like this.
905:5x 181
981:3x 3x 109
556:2x 2x 139
456:2x 2x 2x 3x 19
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.
2x 2x 2x 2x 3x 5x 19 = 4560
Therefore, the value for common factors is 4560.
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 = 85534400822400/(1x4560)
LCM = 85534400822400/4560
LCM = 18757544040
Thus, we can understand that the LCM of 905,981,556,456,380 is 18757544040.
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FAQs on LCM of 905, 981, 556, 456, 380
1. What is the LCM of 905, 981, 556, 456, 380?
Answer: LCM of 905, 981, 556, 456, 380 is 18757544040.
2. How to calculate the LCM of 905, 981, 556, 456, 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 905, 981, 556, 456, 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}.