LCM of 722, 990, 209, 912
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 722, 990, 209, 912 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, 990, 209, 912. So, keep reading to learn more.
Given numbers are 722,990,209,912
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 722,990,209,912 is 2859120.
Find LCM of 722,990,209,912 with Prime Factorization
| 2 | 722, 990, 209, 912 |
| 3 | 361, 495, 209, 456 |
| 11 | 361, 165, 209, 152 |
| 19 | 361, 15, 19, 152 |
| 1, 15, 19, 8 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 19 x 1 x 15 x 19 x 8 = 2859120
Therefore, the lowest common multiple of 722,990,209,912 is 2859120.
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 990 x 209 x 912 = 136242786240
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
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
209 : 1, 11, 19, 209
912 : 1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 722,990,209,912, is 1.
Now, the common factors can be found like this.
722:2x 19x 19
990:2x 3x 3x 5x 11
209:11x 19
912:2x 2x 2x 2x 3x 19
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 11x 19x 19 = 47652
Therefore, the value for common factors is 47652.
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 = 136242786240/(1x47652)
LCM = 136242786240/47652
LCM = 2859120
Thus, we can understand that the LCM of 722,990,209,912 is 2859120.
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FAQs on LCM of 722, 990, 209, 912
1. What is the LCM of 722, 990, 209, 912?
Answer: LCM of 722, 990, 209, 912 is 2859120.
2. How to calculate the LCM of 722, 990, 209, 912?
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, 990, 209, 912.
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}.