LCM of 756, 695, 981, 556
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 756, 695, 981, 556 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 756, 695, 981, 556. So, keep reading to learn more.
Given numbers are 756,695,981,556
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 756,695,981,556 is 57270780.
Find LCM of 756,695,981,556 with Prime Factorization
| 2 | 756, 695, 981, 556 |
| 2 | 378, 695, 981, 278 |
| 3 | 189, 695, 981, 139 |
| 3 | 63, 695, 327, 139 |
| 139 | 21, 695, 109, 139 |
| 21, 5, 109, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 139 x 21 x 5 x 109 x 1 = 57270780
Therefore, the lowest common multiple of 756,695,981,556 is 57270780.
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.
756 x 695 x 981 x 556 = 286582983120
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.
756 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
695 : 1, 5, 139, 695
981 : 1, 3, 9, 109, 327, 981
556 : 1, 2, 4, 139, 278, 556
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 756,695,981,556, is 1.
Now, the common factors can be found like this.
756:2x 2x 3x 3x 3x 7
695:5x 139
981:3x 3x 109
556:2x 2x 139
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 3x 3x 139 = 5004
Therefore, the value for common factors is 5004.
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 = 286582983120/(1x5004)
LCM = 286582983120/5004
LCM = 57270780
Thus, we can understand that the LCM of 756,695,981,556 is 57270780.
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FAQs on LCM of 756, 695, 981, 556
1. What is the LCM of 756, 695, 981, 556?
Answer: LCM of 756, 695, 981, 556 is 57270780.
2. How to calculate the LCM of 756, 695, 981, 556?
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 756, 695, 981, 556.
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}.