LCM of 657, 345, 645, 542, 395
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 657, 345, 645, 542, 395 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 657, 345, 645, 542, 395. So, keep reading to learn more.
Given numbers are 657,345,645,542,395
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 657,345,645,542,395 is 139109901570.
Find LCM of 657,345,645,542,395 with Prime Factorization
| 3 | 657, 345, 645, 542, 395 |
| 5 | 219, 115, 215, 542, 395 |
| 219, 23, 43, 542, 79 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 219 x 23 x 43 x 542 x 79 = 139109901570
Therefore, the lowest common multiple of 657,345,645,542,395 is 139109901570.
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.
657 x 345 x 645 x 542 x 395 = 31299727853250
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.
657 : 1, 3, 9, 73, 219, 657
345 : 1, 3, 5, 15, 23, 69, 115, 345
645 : 1, 3, 5, 15, 43, 129, 215, 645
542 : 1, 2, 271, 542
395 : 1, 5, 79, 395
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 657,345,645,542,395, is 1.
Now, the common factors can be found like this.
657:3x 3x 73
345:3x 5x 23
645:3x 5x 43
542:2x 271
395:5x 79
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 5x 5 = 225
Therefore, the value for common factors is 225.
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 = 31299727853250/(1x225)
LCM = 31299727853250/225
LCM = 139109901570
Thus, we can understand that the LCM of 657,345,645,542,395 is 139109901570.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 657, 345, 645, 542, 395
1. What is the LCM of 657, 345, 645, 542, 395?
Answer: LCM of 657, 345, 645, 542, 395 is 139109901570.
2. How to calculate the LCM of 657, 345, 645, 542, 395?
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 657, 345, 645, 542, 395.
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}.