LCM of 768, 972, 921, 568
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 768, 972, 921, 568 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 768, 972, 921, 568. So, keep reading to learn more.
Given numbers are 768,972,921,568
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 768,972,921,568 is 1355947776.
Find LCM of 768,972,921,568 with Prime Factorization
| 2 | 768, 972, 921, 568 |
| 2 | 384, 486, 921, 284 |
| 2 | 192, 243, 921, 142 |
| 3 | 96, 243, 921, 71 |
| 32, 81, 307, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 32 x 81 x 307 x 71 = 1355947776
Therefore, the lowest common multiple of 768,972,921,568 is 1355947776.
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.
768 x 972 x 921 x 568 = 390512959488
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.
768 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768
972 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
921 : 1, 3, 307, 921
568 : 1, 2, 4, 8, 71, 142, 284, 568
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 768,972,921,568, is 1.
Now, the common factors can be found like this.
768:2x 2x 2x 2x 2x 2x 2x 2x 3
972:2x 2x 3x 3x 3x 3x 3
921:3x 307
568:2x 2x 2x 71
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 2x 2x 3x 3 = 288
Therefore, the value for common factors is 288.
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 = 390512959488/(1x288)
LCM = 390512959488/288
LCM = 1355947776
Thus, we can understand that the LCM of 768,972,921,568 is 1355947776.
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FAQs on LCM of 768, 972, 921, 568
1. What is the LCM of 768, 972, 921, 568?
Answer: LCM of 768, 972, 921, 568 is 1355947776.
2. How to calculate the LCM of 768, 972, 921, 568?
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 768, 972, 921, 568.
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}.