LCM of 285, 304, 689, 371
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 285, 304, 689, 371 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 285, 304, 689, 371. So, keep reading to learn more.
Given numbers are 285,304,689,371
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 285,304,689,371 is 21992880.
Find LCM of 285,304,689,371 with Prime Factorization
| 19 | 285, 304, 689, 371 |
| 53 | 15, 16, 689, 371 |
| 15, 16, 13, 7 |
Multiply the prime numbers at the bottom and the left side.
19 x 53 x 15 x 16 x 13 x 7 = 21992880
Therefore, the lowest common multiple of 285,304,689,371 is 21992880.
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.
285 x 304 x 689 x 371 = 22146830160
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.
285 : 1, 3, 5, 15, 19, 57, 95, 285
304 : 1, 2, 4, 8, 16, 19, 38, 76, 152, 304
689 : 1, 13, 53, 689
371 : 1, 7, 53, 371
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 285,304,689,371, is 1.
Now, the common factors can be found like this.
285:3x 5x 19
304:2x 2x 2x 2x 19
689:13x 53
371:7x 53
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
19x 53 = 1007
Therefore, the value for common factors is 1007.
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 = 22146830160/(1x1007)
LCM = 22146830160/1007
LCM = 21992880
Thus, we can understand that the LCM of 285,304,689,371 is 21992880.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 285, 304, 689, 371
1. What is the LCM of 285, 304, 689, 371?
Answer: LCM of 285, 304, 689, 371 is 21992880.
2. How to calculate the LCM of 285, 304, 689, 371?
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 285, 304, 689, 371.
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}.