LCM of 187, 781, 861, 126
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 187, 781, 861, 126 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, 781, 861, 126. So, keep reading to learn more.
Given numbers are 187,781,861,126
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 187,781,861,126 is 68588982.
Find LCM of 187,781,861,126 with Prime Factorization
| 3 | 187, 781, 861, 126 |
| 7 | 187, 781, 287, 42 |
| 11 | 187, 781, 41, 6 |
| 17, 71, 41, 6 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 11 x 17 x 71 x 41 x 6 = 68588982
Therefore, the lowest common multiple of 187,781,861,126 is 68588982.
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 781 x 861 x 126 = 15844054842
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
781 : 1, 11, 71, 781
861 : 1, 3, 7, 21, 41, 123, 287, 861
126 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 187,781,861,126, is 1.
Now, the common factors can be found like this.
187:11x 17
781:11x 71
861:3x 7x 41
126:2x 3x 3x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 11 = 231
Therefore, the value for common factors is 231.
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 = 15844054842/(1x231)
LCM = 15844054842/231
LCM = 68588982
Thus, we can understand that the LCM of 187,781,861,126 is 68588982.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 187, 781, 861, 126
1. What is the LCM of 187, 781, 861, 126?
Answer: LCM of 187, 781, 861, 126 is 68588982.
2. How to calculate the LCM of 187, 781, 861, 126?
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, 781, 861, 126.
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}.