LCM of 423, 978, 505
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 423, 978, 505 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 423, 978, 505. So, keep reading to learn more.
Given numbers are 423,978,505
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 423,978,505 is 69638490.
Find LCM of 423,978,505 with Prime Factorization
| 3 | 423, 978, 505 |
| 141, 326, 505 |
Multiply the prime numbers at the bottom and the left side.
3 x 141 x 326 x 505 = 69638490
Therefore, the lowest common multiple of 423,978,505 is 69638490.
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.
423 x 978 x 505 = 208915470
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.
423 : 1, 3, 9, 47, 141, 423
978 : 1, 2, 3, 6, 163, 326, 489, 978
505 : 1, 5, 101, 505
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 423,978,505, is 1.
Now, the common factors can be found like this.
423:3x 3x 47
978:2x 3x 163
505:5x 101
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 = 208915470/(1x3)
LCM = 208915470/3
LCM = 69638490
Thus, we can understand that the LCM of 423,978,505 is 69638490.
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FAQs on LCM of 423, 978, 505
1. What is the LCM of 423, 978, 505?
Answer: LCM of 423, 978, 505 is 69638490.
2. How to calculate the LCM of 423, 978, 505?
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 423, 978, 505.
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}.