Find the LCM of 391, 253, 506, 645 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 391, 253, 506, 645. So, keep reading to learn more.
Given numbers are 391,253,506,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 391,253,506,645 is 5548290.
Find LCM of 391,253,506,645 with Prime Factorization
11 | 391, 253, 506, 645 |
23 | 391, 23, 46, 645 |
17, 1, 2, 645 |
Multiply the prime numbers at the bottom and the left side.
11 x 23 x 17 x 1 x 2 x 645 = 5548290
Therefore, the lowest common multiple of 391,253,506,645 is 5548290.
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.
391 x 253 x 506 x 645 = 32285499510
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.
391 : 1, 17, 23, 391
253 : 1, 11, 23, 253
506 : 1, 2, 11, 22, 23, 46, 253, 506
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 391,253,506,645, is 1.
Now, the common factors can be found like this.
391:17x 23
253:11x 23
506:2x 11x 23
645:3x 5x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
11x 23x 23 = 5819
Therefore, the value for common factors is 5819.
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 = 32285499510/(1x5819)
LCM = 32285499510/5819
LCM = 5548290
Thus, we can understand that the LCM of 391,253,506,645 is 5548290.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 391, 253, 506, 645?
Answer: LCM of 391, 253, 506, 645 is 5548290.
2. How to calculate the LCM of 391, 253, 506, 645?
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 391, 253, 506, 645.
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}.