LCM of 381, 867, 861, 646, 619
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 381, 867, 861, 646, 619 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 381, 867, 861, 646, 619. So, keep reading to learn more.
Given numbers are 381,867,861,646,619
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 381,867,861,646,619 is 743325378726.
Find LCM of 381,867,861,646,619 with Prime Factorization
| 3 | 381, 867, 861, 646, 619 |
| 17 | 127, 289, 287, 646, 619 |
| 127, 17, 287, 38, 619 |
Multiply the prime numbers at the bottom and the left side.
3 x 17 x 127 x 17 x 287 x 38 x 619 = 743325378726
Therefore, the lowest common multiple of 381,867,861,646,619 is 743325378726.
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.
381 x 867 x 861 x 646 x 619 = 113728782945078
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.
381 : 1, 3, 127, 381
867 : 1, 3, 17, 51, 289, 867
861 : 1, 3, 7, 21, 41, 123, 287, 861
646 : 1, 2, 17, 19, 34, 38, 323, 646
619 : 1, 619
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 381,867,861,646,619, is 1.
Now, the common factors can be found like this.
381:3x 127
867:3x 17x 17
861:3x 7x 41
646:2x 17x 19
619:619
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 17 = 153
Therefore, the value for common factors is 153.
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 = 113728782945078/(1x153)
LCM = 113728782945078/153
LCM = 743325378726
Thus, we can understand that the LCM of 381,867,861,646,619 is 743325378726.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 381, 867, 861, 646, 619
1. What is the LCM of 381, 867, 861, 646, 619?
Answer: LCM of 381, 867, 861, 646, 619 is 743325378726.
2. How to calculate the LCM of 381, 867, 861, 646, 619?
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 381, 867, 861, 646, 619.
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}.