LCM of 757, 728, 180, 138
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 757, 728, 180, 138 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 757, 728, 180, 138. So, keep reading to learn more.
Given numbers are 757,728,180,138
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 757,728,180,138 is 570384360.
Find LCM of 757,728,180,138 with Prime Factorization
| 2 | 757, 728, 180, 138 |
| 2 | 757, 364, 90, 69 |
| 3 | 757, 182, 45, 69 |
| 757, 182, 15, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 757 x 182 x 15 x 23 = 570384360
Therefore, the lowest common multiple of 757,728,180,138 is 570384360.
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.
757 x 728 x 180 x 138 = 13689224640
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.
757 : 1, 757
728 : 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
138 : 1, 2, 3, 6, 23, 46, 69, 138
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 757,728,180,138, is 1.
Now, the common factors can be found like this.
757:757
728:2x 2x 2x 7x 13
180:2x 2x 3x 3x 5
138:2x 3x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 3 = 24
Therefore, the value for common factors is 24.
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 = 13689224640/(1x24)
LCM = 13689224640/24
LCM = 570384360
Thus, we can understand that the LCM of 757,728,180,138 is 570384360.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 757, 728, 180, 138
1. What is the LCM of 757, 728, 180, 138?
Answer: LCM of 757, 728, 180, 138 is 570384360.
2. How to calculate the LCM of 757, 728, 180, 138?
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 757, 728, 180, 138.
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}.