LCM of 978, 505, 591, 731
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 978, 505, 591, 731 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 978, 505, 591, 731. So, keep reading to learn more.
Given numbers are 978,505,591,731
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 978,505,591,731 is 71123617230.
Find LCM of 978,505,591,731 with Prime Factorization
| 3 | 978, 505, 591, 731 |
| 326, 505, 197, 731 |
Multiply the prime numbers at the bottom and the left side.
3 x 326 x 505 x 197 x 731 = 71123617230
Therefore, the lowest common multiple of 978,505,591,731 is 71123617230.
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.
978 x 505 x 591 x 731 = 213370851690
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.
978 : 1, 2, 3, 6, 163, 326, 489, 978
505 : 1, 5, 101, 505
591 : 1, 3, 197, 591
731 : 1, 17, 43, 731
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 978,505,591,731, is 1.
Now, the common factors can be found like this.
978:2x 3x 163
505:5x 101
591:3x 197
731:17x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3 = 3
Therefore, the value for common factors is 3.
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 = 213370851690/(1x3)
LCM = 213370851690/3
LCM = 71123617230
Thus, we can understand that the LCM of 978,505,591,731 is 71123617230.
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FAQs on LCM of 978, 505, 591, 731
1. What is the LCM of 978, 505, 591, 731?
Answer: LCM of 978, 505, 591, 731 is 71123617230.
2. How to calculate the LCM of 978, 505, 591, 731?
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 978, 505, 591, 731.
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}.