LCM of 643, 489, 489, 607, 781
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 643, 489, 489, 607, 781 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, 489, 489, 607, 781. So, keep reading to learn more.
Given numbers are 643,489,489,607,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 643,489,489,607,781 is 149059464609.
Find LCM of 643,489,489,607,781 with Prime Factorization
| 3 | 643, 489, 489, 607, 781 |
| 163 | 643, 163, 163, 607, 781 |
| 643, 1, 1, 607, 781 |
Multiply the prime numbers at the bottom and the left side.
3 x 163 x 643 x 1 x 1 x 607 x 781 = 149059464609
Therefore, the lowest common multiple of 643,489,489,607,781 is 149059464609.
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 489 x 489 x 607 x 781 = 72890078193801
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
489 : 1, 3, 163, 489
489 : 1, 3, 163, 489
607 : 1, 607
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 643,489,489,607,781, is 1.
Now, the common factors can be found like this.
643:643
489:3x 163
489:3x 163
607:607
781:11x 71
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 163 = 489
Therefore, the value for common factors is 489.
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 = 72890078193801/(1x489)
LCM = 72890078193801/489
LCM = 149059464609
Thus, we can understand that the LCM of 643,489,489,607,781 is 149059464609.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 643, 489, 489, 607, 781
1. What is the LCM of 643, 489, 489, 607, 781?
Answer: LCM of 643, 489, 489, 607, 781 is 149059464609.
2. How to calculate the LCM of 643, 489, 489, 607, 781?
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, 489, 489, 607, 781.
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}.