LCM of 668, 162, 781, 909
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 668, 162, 781, 909 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 668, 162, 781, 909. So, keep reading to learn more.
Given numbers are 668,162,781,909
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 668,162,781,909 is 4268093148.
Find LCM of 668,162,781,909 with Prime Factorization
| 2 | 668, 162, 781, 909 |
| 3 | 334, 81, 781, 909 |
| 3 | 334, 27, 781, 303 |
| 334, 9, 781, 101 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 334 x 9 x 781 x 101 = 4268093148
Therefore, the lowest common multiple of 668,162,781,909 is 4268093148.
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.
668 x 162 x 781 x 909 = 76825676664
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.
668 : 1, 2, 4, 167, 334, 668
162 : 1, 2, 3, 6, 9, 18, 27, 54, 81, 162
781 : 1, 11, 71, 781
909 : 1, 3, 9, 101, 303, 909
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 668,162,781,909, is 1.
Now, the common factors can be found like this.
668:2x 2x 167
162:2x 3x 3x 3x 3
781:11x 71
909:3x 3x 101
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 3 = 18
Therefore, the value for common factors is 18.
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 = 76825676664/(1x18)
LCM = 76825676664/18
LCM = 4268093148
Thus, we can understand that the LCM of 668,162,781,909 is 4268093148.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 668, 162, 781, 909
1. What is the LCM of 668, 162, 781, 909?
Answer: LCM of 668, 162, 781, 909 is 4268093148.
2. How to calculate the LCM of 668, 162, 781, 909?
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 668, 162, 781, 909.
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}.