LCM of 439, 678, 640, 399, 805
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 439, 678, 640, 399, 805 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 439, 678, 640, 399, 805. So, keep reading to learn more.
Given numbers are 439,678,640,399,805
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 439,678,640,399,805 is 291355800960.
Find LCM of 439,678,640,399,805 with Prime Factorization
| 2 | 439, 678, 640, 399, 805 |
| 3 | 439, 339, 320, 399, 805 |
| 5 | 439, 113, 320, 133, 805 |
| 7 | 439, 113, 64, 133, 161 |
| 439, 113, 64, 19, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 439 x 113 x 64 x 19 x 23 = 291355800960
Therefore, the lowest common multiple of 439,678,640,399,805 is 291355800960.
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.
439 x 678 x 640 x 399 x 805 = 61184718201600
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.
439 : 1, 439
678 : 1, 2, 3, 6, 113, 226, 339, 678
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
399 : 1, 3, 7, 19, 21, 57, 133, 399
805 : 1, 5, 7, 23, 35, 115, 161, 805
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 439,678,640,399,805, is 1.
Now, the common factors can be found like this.
439:439
678:2x 3x 113
640:2x 2x 2x 2x 2x 2x 2x 5
399:3x 7x 19
805:5x 7x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 5x 7 = 210
Therefore, the value for common factors is 210.
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 = 61184718201600/(1x210)
LCM = 61184718201600/210
LCM = 291355800960
Thus, we can understand that the LCM of 439,678,640,399,805 is 291355800960.
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FAQs on LCM of 439, 678, 640, 399, 805
1. What is the LCM of 439, 678, 640, 399, 805?
Answer: LCM of 439, 678, 640, 399, 805 is 291355800960.
2. How to calculate the LCM of 439, 678, 640, 399, 805?
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 439, 678, 640, 399, 805.
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}.