LCM of 123, 779, 315, 978
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 123, 779, 315, 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 123, 779, 315, 978. So, keep reading to learn more.
Given numbers are 123,779,315,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 123,779,315,978 is 79995510.
Find LCM of 123,779,315,978 with Prime Factorization
| 3 | 123, 779, 315, 978 |
| 41 | 41, 779, 105, 326 |
| 1, 19, 105, 326 |
Multiply the prime numbers at the bottom and the left side.
3 x 41 x 1 x 19 x 105 x 326 = 79995510
Therefore, the lowest common multiple of 123,779,315,978 is 79995510.
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.
123 x 779 x 315 x 978 = 29518343190
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.
123 : 1, 3, 41, 123
779 : 1, 19, 41, 779
315 : 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
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 123,779,315,978, is 1.
Now, the common factors can be found like this.
123:3x 41
779:19x 41
315:3x 3x 5x 7
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.
3x 3x 41 = 369
Therefore, the value for common factors is 369.
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 = 29518343190/(1x369)
LCM = 29518343190/369
LCM = 79995510
Thus, we can understand that the LCM of 123,779,315,978 is 79995510.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 123, 779, 315, 978
1. What is the LCM of 123, 779, 315, 978?
Answer: LCM of 123, 779, 315, 978 is 79995510.
2. How to calculate the LCM of 123, 779, 315, 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 123, 779, 315, 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}.