LCM of 258, 817, 247, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 258, 817, 247, 645 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 258, 817, 247, 645. So, keep reading to learn more.
Given numbers are 258,817,247,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 258,817,247,645 is 318630.
Find LCM of 258,817,247,645 with Prime Factorization
| 3 | 258, 817, 247, 645 |
| 19 | 86, 817, 247, 215 |
| 43 | 86, 43, 13, 215 |
| 2, 1, 13, 5 |
Multiply the prime numbers at the bottom and the left side.
3 x 19 x 43 x 2 x 1 x 13 x 5 = 318630
Therefore, the lowest common multiple of 258,817,247,645 is 318630.
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.
258 x 817 x 247 x 645 = 33581371590
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.
258 : 1, 2, 3, 6, 43, 86, 129, 258
817 : 1, 19, 43, 817
247 : 1, 13, 19, 247
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 258,817,247,645, is 1.
Now, the common factors can be found like this.
258:2x 3x 43
817:19x 43
247:13x 19
645:3x 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.
3x 19x 43x 43 = 105393
Therefore, the value for common factors is 105393.
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 = 33581371590/(1x105393)
LCM = 33581371590/105393
LCM = 318630
Thus, we can understand that the LCM of 258,817,247,645 is 318630.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 258, 817, 247, 645
1. What is the LCM of 258, 817, 247, 645?
Answer: LCM of 258, 817, 247, 645 is 318630.
2. How to calculate the LCM of 258, 817, 247, 645?
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 258, 817, 247, 645.
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}.