LCM of 978, 247, 676, 756
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 978, 247, 676, 756 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, 247, 676, 756. So, keep reading to learn more.
Given numbers are 978,247,676,756
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 978,247,676,756 is 395685108.
Find LCM of 978,247,676,756 with Prime Factorization
| 2 | 978, 247, 676, 756 |
| 2 | 489, 247, 338, 378 |
| 3 | 489, 247, 169, 189 |
| 13 | 163, 247, 169, 63 |
| 163, 19, 13, 63 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 13 x 163 x 19 x 13 x 63 = 395685108
Therefore, the lowest common multiple of 978,247,676,756 is 395685108.
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 247 x 676 x 756 = 123453753696
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
247 : 1, 13, 19, 247
676 : 1, 2, 4, 13, 26, 52, 169, 338, 676
756 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 978,247,676,756, is 1.
Now, the common factors can be found like this.
978:2x 3x 163
247:13x 19
676:2x 2x 13x 13
756:2x 2x 3x 3x 3x 7
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 2x 3x 13 = 312
Therefore, the value for common factors is 312.
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 = 123453753696/(1x312)
LCM = 123453753696/312
LCM = 395685108
Thus, we can understand that the LCM of 978,247,676,756 is 395685108.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 978, 247, 676, 756
1. What is the LCM of 978, 247, 676, 756?
Answer: LCM of 978, 247, 676, 756 is 395685108.
2. How to calculate the LCM of 978, 247, 676, 756?
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, 247, 676, 756.
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}.