LCM of 455, 945, 878, 890, 820
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 455, 945, 878, 890, 820 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 455, 945, 878, 890, 820. So, keep reading to learn more.
Given numbers are 455,945,878,890,820
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 455,945,878,890,820 is 78717906540.
Find LCM of 455,945,878,890,820 with Prime Factorization
| 2 | 455, 945, 878, 890, 820 |
| 5 | 455, 945, 439, 445, 410 |
| 7 | 91, 189, 439, 89, 82 |
| 13, 27, 439, 89, 82 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 13 x 27 x 439 x 89 x 82 = 78717906540
Therefore, the lowest common multiple of 455,945,878,890,820 is 78717906540.
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.
455 x 945 x 878 x 890 x 820 = 275512672890000
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.
455 : 1, 5, 7, 13, 35, 65, 91, 455
945 : 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
878 : 1, 2, 439, 878
890 : 1, 2, 5, 10, 89, 178, 445, 890
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 455,945,878,890,820, is 1.
Now, the common factors can be found like this.
455:5x 7x 13
945:3x 3x 3x 5x 7
878:2x 439
890:2x 5x 89
820:2x 2x 5x 41
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 5x 7 = 3500
Therefore, the value for common factors is 3500.
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 = 275512672890000/(1x3500)
LCM = 275512672890000/3500
LCM = 78717906540
Thus, we can understand that the LCM of 455,945,878,890,820 is 78717906540.
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FAQs on LCM of 455, 945, 878, 890, 820
1. What is the LCM of 455, 945, 878, 890, 820?
Answer: LCM of 455, 945, 878, 890, 820 is 78717906540.
2. How to calculate the LCM of 455, 945, 878, 890, 820?
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 455, 945, 878, 890, 820.
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}.