LCM of 643, 322, 575, 865
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 643, 322, 575, 865 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 643, 322, 575, 865. So, keep reading to learn more.
Given numbers are 643,322,575,865
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 643,322,575,865 is 895473950.
Find LCM of 643,322,575,865 with Prime Factorization
| 5 | 643, 322, 575, 865 |
| 23 | 643, 322, 115, 173 |
| 643, 14, 5, 173 |
Multiply the prime numbers at the bottom and the left side.
5 x 23 x 643 x 14 x 5 x 173 = 895473950
Therefore, the lowest common multiple of 643,322,575,865 is 895473950.
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.
643 x 322 x 575 x 865 = 102979504250
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.
643 : 1, 643
322 : 1, 2, 7, 14, 23, 46, 161, 322
575 : 1, 5, 23, 25, 115, 575
865 : 1, 5, 173, 865
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,322,575,865, is 1.
Now, the common factors can be found like this.
643:643
322:2x 7x 23
575:5x 5x 23
865:5x 173
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 23 = 115
Therefore, the value for common factors is 115.
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 = 102979504250/(1x115)
LCM = 102979504250/115
LCM = 895473950
Thus, we can understand that the LCM of 643,322,575,865 is 895473950.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 643, 322, 575, 865
1. What is the LCM of 643, 322, 575, 865?
Answer: LCM of 643, 322, 575, 865 is 895473950.
2. How to calculate the LCM of 643, 322, 575, 865?
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 643, 322, 575, 865.
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}.