LCM of 257, 286, 858, 785
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 257, 286, 858, 785 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 257, 286, 858, 785. So, keep reading to learn more.
Given numbers are 257,286,858,785
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 257,286,858,785 is 173097210.
Find LCM of 257,286,858,785 with Prime Factorization
| 2 | 257, 286, 858, 785 |
| 11 | 257, 143, 429, 785 |
| 13 | 257, 13, 39, 785 |
| 257, 1, 3, 785 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 13 x 257 x 1 x 3 x 785 = 173097210
Therefore, the lowest common multiple of 257,286,858,785 is 173097210.
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.
257 x 286 x 858 x 785 = 49505802060
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.
257 : 1, 257
286 : 1, 2, 11, 13, 22, 26, 143, 286
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
785 : 1, 5, 157, 785
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 257,286,858,785, is 1.
Now, the common factors can be found like this.
257:257
286:2x 11x 13
858:2x 3x 11x 13
785:5x 157
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11x 13 = 286
Therefore, the value for common factors is 286.
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 = 49505802060/(1x286)
LCM = 49505802060/286
LCM = 173097210
Thus, we can understand that the LCM of 257,286,858,785 is 173097210.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 257, 286, 858, 785
1. What is the LCM of 257, 286, 858, 785?
Answer: LCM of 257, 286, 858, 785 is 173097210.
2. How to calculate the LCM of 257, 286, 858, 785?
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 257, 286, 858, 785.
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}.