LCM of 625, 869, 395, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 625, 869, 395, 690 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 625, 869, 395, 690. So, keep reading to learn more.
Given numbers are 625,869,395,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 625,869,395,690 is 74951250.
Find LCM of 625,869,395,690 with Prime Factorization
| 5 | 625, 869, 395, 690 |
| 79 | 125, 869, 79, 138 |
| 125, 11, 1, 138 |
Multiply the prime numbers at the bottom and the left side.
5 x 79 x 125 x 11 x 1 x 138 = 74951250
Therefore, the lowest common multiple of 625,869,395,690 is 74951250.
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.
625 x 869 x 395 x 690 = 148028718750
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.
625 : 1, 5, 25, 125, 625
869 : 1, 11, 79, 869
395 : 1, 5, 79, 395
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 625,869,395,690, is 1.
Now, the common factors can be found like this.
625:5x 5x 5x 5
869:11x 79
395:5x 79
690:2x 3x 5x 23
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 79 = 1975
Therefore, the value for common factors is 1975.
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 = 148028718750/(1x1975)
LCM = 148028718750/1975
LCM = 74951250
Thus, we can understand that the LCM of 625,869,395,690 is 74951250.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 625, 869, 395, 690
1. What is the LCM of 625, 869, 395, 690?
Answer: LCM of 625, 869, 395, 690 is 74951250.
2. How to calculate the LCM of 625, 869, 395, 690?
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 625, 869, 395, 690.
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}.