LCM of 918, 914, 920, 646, 640
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 918, 914, 920, 646, 640 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 918, 914, 920, 646, 640. So, keep reading to learn more.
Given numbers are 918,914,920,646,640
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 918,914,920,646,640 is 58666515840.
Find LCM of 918,914,920,646,640 with Prime Factorization
| 2 | 918, 914, 920, 646, 640 |
| 2 | 459, 457, 460, 323, 320 |
| 2 | 459, 457, 230, 323, 160 |
| 5 | 459, 457, 115, 323, 80 |
| 17 | 459, 457, 23, 323, 16 |
| 27, 457, 23, 19, 16 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 5 x 17 x 27 x 457 x 23 x 19 x 16 = 58666515840
Therefore, the lowest common multiple of 918,914,920,646,640 is 58666515840.
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.
918 x 914 x 920 x 646 x 640 = 319145846169600
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.
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
914 : 1, 2, 457, 914
920 : 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
646 : 1, 2, 17, 19, 34, 38, 323, 646
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 918,914,920,646,640, is 2.
Now, the common factors can be found like this.
918:2x 3x 3x 3x 17
914:2x 457
920:2x 2x 2x 5x 23
646:2x 17x 19
640:2x 2x 2x 2x 2x 2x 2x 5
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 5x 17 = 2720
Therefore, the value for common factors is 2720.
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 = 319145846169600/(2x2720)
LCM = 319145846169600/5440
LCM = 58666515840
Thus, we can understand that the LCM of 918,914,920,646,640 is 58666515840.
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FAQs on LCM of 918, 914, 920, 646, 640
1. What is the LCM of 918, 914, 920, 646, 640?
Answer: LCM of 918, 914, 920, 646, 640 is 58666515840.
2. How to calculate the LCM of 918, 914, 920, 646, 640?
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 918, 914, 920, 646, 640.
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}.