LCM of 400, 287, 605, 221, 905
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 400, 287, 605, 221, 905 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 400, 287, 605, 221, 905. So, keep reading to learn more.
Given numbers are 400,287,605,221,905
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 400,287,605,221,905 is 555645890800.
Find LCM of 400,287,605,221,905 with Prime Factorization
| 5 | 400, 287, 605, 221, 905 |
| 80, 287, 121, 221, 181 |
Multiply the prime numbers at the bottom and the left side.
5 x 80 x 287 x 121 x 221 x 181 = 555645890800
Therefore, the lowest common multiple of 400,287,605,221,905 is 555645890800.
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.
400 x 287 x 605 x 221 x 905 = 13891147270000
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.
400 : 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
287 : 1, 7, 41, 287
605 : 1, 5, 11, 55, 121, 605
221 : 1, 13, 17, 221
905 : 1, 5, 181, 905
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 400,287,605,221,905, is 1.
Now, the common factors can be found like this.
400:2x 2x 2x 2x 5x 5
287:7x 41
605:5x 11x 11
221:13x 17
905:5x 181
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 5 = 25
Therefore, the value for common factors is 25.
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 = 13891147270000/(1x25)
LCM = 13891147270000/25
LCM = 555645890800
Thus, we can understand that the LCM of 400,287,605,221,905 is 555645890800.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 400, 287, 605, 221, 905
1. What is the LCM of 400, 287, 605, 221, 905?
Answer: LCM of 400, 287, 605, 221, 905 is 555645890800.
2. How to calculate the LCM of 400, 287, 605, 221, 905?
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 400, 287, 605, 221, 905.
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}.