LCM of 279, 128, 722, 643
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 279, 128, 722, 643 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 279, 128, 722, 643. So, keep reading to learn more.
Given numbers are 279,128,722,643
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 279,128,722,643 is 8289576576.
Find LCM of 279,128,722,643 with Prime Factorization
| 2 | 279, 128, 722, 643 |
| 279, 64, 361, 643 |
Multiply the prime numbers at the bottom and the left side.
2 x 279 x 64 x 361 x 643 = 8289576576
Therefore, the lowest common multiple of 279,128,722,643 is 8289576576.
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.
279 x 128 x 722 x 643 = 16579153152
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.
279 : 1, 3, 9, 31, 93, 279
128 : 1, 2, 4, 8, 16, 32, 64, 128
722 : 1, 2, 19, 38, 361, 722
643 : 1, 643
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 279,128,722,643, is 1.
Now, the common factors can be found like this.
279:3x 3x 31
128:2x 2x 2x 2x 2x 2x 2
722:2x 19x 19
643:643
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2 = 2
Therefore, the value for common factors is 2.
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 = 16579153152/(1x2)
LCM = 16579153152/2
LCM = 8289576576
Thus, we can understand that the LCM of 279,128,722,643 is 8289576576.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 279, 128, 722, 643
1. What is the LCM of 279, 128, 722, 643?
Answer: LCM of 279, 128, 722, 643 is 8289576576.
2. How to calculate the LCM of 279, 128, 722, 643?
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 279, 128, 722, 643.
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}.