LCM of 187, 561, 638, 738
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 187, 561, 638, 738 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 187, 561, 638, 738. So, keep reading to learn more.
Given numbers are 187,561,638,738
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 187,561,638,738 is 4002174.
Find LCM of 187,561,638,738 with Prime Factorization
| 2 | 187, 561, 638, 738 |
| 3 | 187, 561, 319, 369 |
| 11 | 187, 187, 319, 123 |
| 17 | 17, 17, 29, 123 |
| 1, 1, 29, 123 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 17 x 1 x 1 x 29 x 123 = 4002174
Therefore, the lowest common multiple of 187,561,638,738 is 4002174.
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.
187 x 561 x 638 x 738 = 49394831508
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.
187 : 1, 11, 17, 187
561 : 1, 3, 11, 17, 33, 51, 187, 561
638 : 1, 2, 11, 22, 29, 58, 319, 638
738 : 1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 187,561,638,738, is 1.
Now, the common factors can be found like this.
187:11x 17
561:3x 11x 17
638:2x 11x 29
738:2x 3x 3x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 11x 11x 17 = 12342
Therefore, the value for common factors is 12342.
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 = 49394831508/(1x12342)
LCM = 49394831508/12342
LCM = 4002174
Thus, we can understand that the LCM of 187,561,638,738 is 4002174.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 187, 561, 638, 738
1. What is the LCM of 187, 561, 638, 738?
Answer: LCM of 187, 561, 638, 738 is 4002174.
2. How to calculate the LCM of 187, 561, 638, 738?
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 187, 561, 638, 738.
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}.