LCM of 516, 791, 172, 398
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 516, 791, 172, 398 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 516, 791, 172, 398. So, keep reading to learn more.
Given numbers are 516,791,172,398
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 516,791,172,398 is 81223044.
Find LCM of 516,791,172,398 with Prime Factorization
| 2 | 516, 791, 172, 398 |
| 2 | 258, 791, 86, 199 |
| 43 | 129, 791, 43, 199 |
| 3, 791, 1, 199 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 43 x 3 x 791 x 1 x 199 = 81223044
Therefore, the lowest common multiple of 516,791,172,398 is 81223044.
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.
516 x 791 x 172 x 398 = 27940727136
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.
516 : 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516
791 : 1, 7, 113, 791
172 : 1, 2, 4, 43, 86, 172
398 : 1, 2, 199, 398
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 516,791,172,398, is 1.
Now, the common factors can be found like this.
516:2x 2x 3x 43
791:7x 113
172:2x 2x 43
398:2x 199
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 43 = 344
Therefore, the value for common factors is 344.
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 = 27940727136/(1x344)
LCM = 27940727136/344
LCM = 81223044
Thus, we can understand that the LCM of 516,791,172,398 is 81223044.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 516, 791, 172, 398
1. What is the LCM of 516, 791, 172, 398?
Answer: LCM of 516, 791, 172, 398 is 81223044.
2. How to calculate the LCM of 516, 791, 172, 398?
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 516, 791, 172, 398.
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}.