LCM of 431, 572, 124, 644, 391
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 431, 572, 124, 644, 391 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 431, 572, 124, 644, 391. So, keep reading to learn more.
Given numbers are 431,572,124,644,391
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 431,572,124,644,391 is 20917500604.
Find LCM of 431,572,124,644,391 with Prime Factorization
| 2 | 431, 572, 124, 644, 391 |
| 2 | 431, 286, 62, 322, 391 |
| 23 | 431, 143, 31, 161, 391 |
| 431, 143, 31, 7, 17 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 23 x 431 x 143 x 31 x 7 x 17 = 20917500604
Therefore, the lowest common multiple of 431,572,124,644,391 is 20917500604.
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.
431 x 572 x 124 x 644 x 391 = 7697640222272
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.
431 : 1, 431
572 : 1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572
124 : 1, 2, 4, 31, 62, 124
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
391 : 1, 17, 23, 391
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 431,572,124,644,391, is 1.
Now, the common factors can be found like this.
431:431
572:2x 2x 11x 13
124:2x 2x 31
644:2x 2x 7x 23
391:17x 23
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 2x 23 = 368
Therefore, the value for common factors is 368.
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 = 7697640222272/(1x368)
LCM = 7697640222272/368
LCM = 20917500604
Thus, we can understand that the LCM of 431,572,124,644,391 is 20917500604.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 431, 572, 124, 644, 391
1. What is the LCM of 431, 572, 124, 644, 391?
Answer: LCM of 431, 572, 124, 644, 391 is 20917500604.
2. How to calculate the LCM of 431, 572, 124, 644, 391?
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 431, 572, 124, 644, 391.
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}.