LCM of 180, 120, 646, 988
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 180, 120, 646, 988 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 180, 120, 646, 988. So, keep reading to learn more.
Given numbers are 180,120,646,988
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 180,120,646,988 is 1511640.
Find LCM of 180,120,646,988 with Prime Factorization
| 2 | 180, 120, 646, 988 |
| 2 | 90, 60, 323, 494 |
| 3 | 45, 30, 323, 247 |
| 5 | 15, 10, 323, 247 |
| 19 | 3, 2, 323, 247 |
| 3, 2, 17, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 19 x 3 x 2 x 17 x 13 = 1511640
Therefore, the lowest common multiple of 180,120,646,988 is 1511640.
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.
180 x 120 x 646 x 988 = 13786156800
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.
180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
646 : 1, 2, 17, 19, 34, 38, 323, 646
988 : 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 180,120,646,988, is 2.
Now, the common factors can be found like this.
180:2x 2x 3x 3x 5
120:2x 2x 2x 3x 5
646:2x 17x 19
988:2x 2x 13x 19
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 2x 3x 5x 19 = 4560
Therefore, the value for common factors is 4560.
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 = 13786156800/(2x4560)
LCM = 13786156800/9120
LCM = 1511640
Thus, we can understand that the LCM of 180,120,646,988 is 1511640.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 180, 120, 646, 988
1. What is the LCM of 180, 120, 646, 988?
Answer: LCM of 180, 120, 646, 988 is 1511640.
2. How to calculate the LCM of 180, 120, 646, 988?
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 180, 120, 646, 988.
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}.