LCM of 725, 391, 715, 520
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 725, 391, 715, 520 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 725, 391, 715, 520. So, keep reading to learn more.
Given numbers are 725,391,715,520
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 725,391,715,520 is 324295400.
Find LCM of 725,391,715,520 with Prime Factorization
| 5 | 725, 391, 715, 520 |
| 13 | 145, 391, 143, 104 |
| 145, 391, 11, 8 |
Multiply the prime numbers at the bottom and the left side.
5 x 13 x 145 x 391 x 11 x 8 = 324295400
Therefore, the lowest common multiple of 725,391,715,520 is 324295400.
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.
725 x 391 x 715 x 520 = 105396005000
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.
725 : 1, 5, 25, 29, 145, 725
391 : 1, 17, 23, 391
715 : 1, 5, 11, 13, 55, 65, 143, 715
520 : 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 725,391,715,520, is 1.
Now, the common factors can be found like this.
725:5x 5x 29
391:17x 23
715:5x 11x 13
520:2x 2x 2x 5x 13
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 13 = 325
Therefore, the value for common factors is 325.
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 = 105396005000/(1x325)
LCM = 105396005000/325
LCM = 324295400
Thus, we can understand that the LCM of 725,391,715,520 is 324295400.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 725, 391, 715, 520
1. What is the LCM of 725, 391, 715, 520?
Answer: LCM of 725, 391, 715, 520 is 324295400.
2. How to calculate the LCM of 725, 391, 715, 520?
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 725, 391, 715, 520.
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}.