LCM of 424, 640, 248, 390, 923
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 424, 640, 248, 390, 923 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 424, 640, 248, 390, 923. So, keep reading to learn more.
Given numbers are 424,640,248,390,923
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 424,640,248,390,923 is 2911658880.
Find LCM of 424,640,248,390,923 with Prime Factorization
| 2 | 424, 640, 248, 390, 923 |
| 2 | 212, 320, 124, 195, 923 |
| 2 | 106, 160, 62, 195, 923 |
| 5 | 53, 80, 31, 195, 923 |
| 13 | 53, 16, 31, 39, 923 |
| 53, 16, 31, 3, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 5 x 13 x 53 x 16 x 31 x 3 x 71 = 2911658880
Therefore, the lowest common multiple of 424,640,248,390,923 is 2911658880.
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.
424 x 640 x 248 x 390 x 923 = 24225001881600
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.
424 : 1, 2, 4, 8, 53, 106, 212, 424
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
248 : 1, 2, 4, 8, 31, 62, 124, 248
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
923 : 1, 13, 71, 923
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 424,640,248,390,923, is 1.
Now, the common factors can be found like this.
424:2x 2x 2x 53
640:2x 2x 2x 2x 2x 2x 2x 5
248:2x 2x 2x 31
390:2x 3x 5x 13
923:13x 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 2x 2x 5x 13 = 8320
Therefore, the value for common factors is 8320.
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 = 24225001881600/(1x8320)
LCM = 24225001881600/8320
LCM = 2911658880
Thus, we can understand that the LCM of 424,640,248,390,923 is 2911658880.
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FAQs on LCM of 424, 640, 248, 390, 923
1. What is the LCM of 424, 640, 248, 390, 923?
Answer: LCM of 424, 640, 248, 390, 923 is 2911658880.
2. How to calculate the LCM of 424, 640, 248, 390, 923?
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 424, 640, 248, 390, 923.
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}.