LCM of 272, 689, 305, 380
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 272, 689, 305, 380 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 272, 689, 305, 380. So, keep reading to learn more.
Given numbers are 272,689,305,380
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 272,689,305,380 is 1086029360.
Find LCM of 272,689,305,380 with Prime Factorization
| 2 | 272, 689, 305, 380 |
| 2 | 136, 689, 305, 190 |
| 5 | 68, 689, 305, 95 |
| 68, 689, 61, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 68 x 689 x 61 x 19 = 1086029360
Therefore, the lowest common multiple of 272,689,305,380 is 1086029360.
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.
272 x 689 x 305 x 380 = 21720587200
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.
272 : 1, 2, 4, 8, 16, 17, 34, 68, 136, 272
689 : 1, 13, 53, 689
305 : 1, 5, 61, 305
380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 272,689,305,380, is 1.
Now, the common factors can be found like this.
272:2x 2x 2x 2x 17
689:13x 53
305:5x 61
380:2x 2x 5x 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 5 = 20
Therefore, the value for common factors is 20.
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 = 21720587200/(1x20)
LCM = 21720587200/20
LCM = 1086029360
Thus, we can understand that the LCM of 272,689,305,380 is 1086029360.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 272, 689, 305, 380
1. What is the LCM of 272, 689, 305, 380?
Answer: LCM of 272, 689, 305, 380 is 1086029360.
2. How to calculate the LCM of 272, 689, 305, 380?
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 272, 689, 305, 380.
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}.