LCM of 722, 790, 880, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 722, 790, 880, 990 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 722, 790, 880, 990. So, keep reading to learn more.
Given numbers are 722,790,880,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 722,790,880,990 is 225870480.
Find LCM of 722,790,880,990 with Prime Factorization
| 2 | 722, 790, 880, 990 |
| 5 | 361, 395, 440, 495 |
| 11 | 361, 79, 88, 99 |
| 361, 79, 8, 9 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 11 x 361 x 79 x 8 x 9 = 225870480
Therefore, the lowest common multiple of 722,790,880,990 is 225870480.
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.
722 x 790 x 880 x 990 = 496915056000
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.
722 : 1, 2, 19, 38, 361, 722
790 : 1, 2, 5, 10, 79, 158, 395, 790
880 : 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 722,790,880,990, is 2.
Now, the common factors can be found like this.
722:2x 19x 19
790:2x 5x 79
880:2x 2x 2x 2x 5x 11
990:2x 3x 3x 5x 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 5x 5x 11 = 1100
Therefore, the value for common factors is 1100.
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 = 496915056000/(2x1100)
LCM = 496915056000/2200
LCM = 225870480
Thus, we can understand that the LCM of 722,790,880,990 is 225870480.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 722, 790, 880, 990
1. What is the LCM of 722, 790, 880, 990?
Answer: LCM of 722, 790, 880, 990 is 225870480.
2. How to calculate the LCM of 722, 790, 880, 990?
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 722, 790, 880, 990.
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}.