LCM of 434, 789, 856, 978
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 434, 789, 856, 978 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 434, 789, 856, 978. So, keep reading to learn more.
Given numbers are 434,789,856,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 434,789,856,978 is 23889007464.
Find LCM of 434,789,856,978 with Prime Factorization
| 2 | 434, 789, 856, 978 |
| 3 | 217, 789, 428, 489 |
| 217, 263, 428, 163 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 217 x 263 x 428 x 163 = 23889007464
Therefore, the lowest common multiple of 434,789,856,978 is 23889007464.
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.
434 x 789 x 856 x 978 = 286668089568
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.
434 : 1, 2, 7, 14, 31, 62, 217, 434
789 : 1, 3, 263, 789
856 : 1, 2, 4, 8, 107, 214, 428, 856
978 : 1, 2, 3, 6, 163, 326, 489, 978
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 434,789,856,978, is 1.
Now, the common factors can be found like this.
434:2x 7x 31
789:3x 263
856:2x 2x 2x 107
978:2x 3x 163
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 3 = 12
Therefore, the value for common factors is 12.
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 = 286668089568/(1x12)
LCM = 286668089568/12
LCM = 23889007464
Thus, we can understand that the LCM of 434,789,856,978 is 23889007464.
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FAQs on LCM of 434, 789, 856, 978
1. What is the LCM of 434, 789, 856, 978?
Answer: LCM of 434, 789, 856, 978 is 23889007464.
2. How to calculate the LCM of 434, 789, 856, 978?
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 434, 789, 856, 978.
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}.