LCM of 978, 702, 961, 396
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 978, 702, 961, 396 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, 702, 961, 396. So, keep reading to learn more.
Given numbers are 978,702,961,396
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 978,702,961,396 is 2419194492.
Find LCM of 978,702,961,396 with Prime Factorization
| 2 | 978, 702, 961, 396 |
| 3 | 489, 351, 961, 198 |
| 3 | 163, 117, 961, 66 |
| 163, 39, 961, 22 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 163 x 39 x 961 x 22 = 2419194492
Therefore, the lowest common multiple of 978,702,961,396 is 2419194492.
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 702 x 961 x 396 = 261273005136
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
702 : 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702
961 : 1, 31, 961
396 : 1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 978,702,961,396, is 1.
Now, the common factors can be found like this.
978:2x 3x 163
702:2x 3x 3x 3x 13
961:31x 31
396:2x 2x 3x 3x 11
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 3x 3x 3 = 108
Therefore, the value for common factors is 108.
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 = 261273005136/(1x108)
LCM = 261273005136/108
LCM = 2419194492
Thus, we can understand that the LCM of 978,702,961,396 is 2419194492.
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FAQs on LCM of 978, 702, 961, 396
1. What is the LCM of 978, 702, 961, 396?
Answer: LCM of 978, 702, 961, 396 is 2419194492.
2. How to calculate the LCM of 978, 702, 961, 396?
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, 702, 961, 396.
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}.