LCM of 287, 715, 182, 120, 860
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 287, 715, 182, 120, 860 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 287, 715, 182, 120, 860. So, keep reading to learn more.
Given numbers are 287,715,182,120,860
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 287,715,182,120,860 is 211771560.
Find LCM of 287,715,182,120,860 with Prime Factorization
| 2 | 287, 715, 182, 120, 860 |
| 2 | 287, 715, 91, 60, 430 |
| 5 | 287, 715, 91, 30, 215 |
| 7 | 287, 143, 91, 6, 43 |
| 13 | 41, 143, 13, 6, 43 |
| 41, 11, 1, 6, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 13 x 41 x 11 x 1 x 6 x 43 = 211771560
Therefore, the lowest common multiple of 287,715,182,120,860 is 211771560.
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.
287 x 715 x 182 x 120 x 860 = 3854242392000
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.
287 : 1, 7, 41, 287
715 : 1, 5, 11, 13, 55, 65, 143, 715
182 : 1, 2, 7, 13, 14, 26, 91, 182
120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 287,715,182,120,860, is 1.
Now, the common factors can be found like this.
287:7x 41
715:5x 11x 13
182:2x 7x 13
120:2x 2x 2x 3x 5
860:2x 2x 5x 43
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 5x 5x 7x 13 = 18200
Therefore, the value for common factors is 18200.
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 = 3854242392000/(1x18200)
LCM = 3854242392000/18200
LCM = 211771560
Thus, we can understand that the LCM of 287,715,182,120,860 is 211771560.
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FAQs on LCM of 287, 715, 182, 120, 860
1. What is the LCM of 287, 715, 182, 120, 860?
Answer: LCM of 287, 715, 182, 120, 860 is 211771560.
2. How to calculate the LCM of 287, 715, 182, 120, 860?
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 287, 715, 182, 120, 860.
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}.