LCM of 621, 905, 609, 868, 403
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 621, 905, 609, 868, 403 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 621, 905, 609, 868, 403. So, keep reading to learn more.
Given numbers are 621,905,609,868,403
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 621,905,609,868,403 is 183908268180.
Find LCM of 621,905,609,868,403 with Prime Factorization
| 3 | 621, 905, 609, 868, 403 |
| 7 | 207, 905, 203, 868, 403 |
| 31 | 207, 905, 29, 124, 403 |
| 207, 905, 29, 4, 13 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 31 x 207 x 905 x 29 x 4 x 13 = 183908268180
Therefore, the lowest common multiple of 621,905,609,868,403 is 183908268180.
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.
621 x 905 x 609 x 868 x 403 = 119724282585180
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.
621 : 1, 3, 9, 23, 27, 69, 207, 621
905 : 1, 5, 181, 905
609 : 1, 3, 7, 21, 29, 87, 203, 609
868 : 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868
403 : 1, 13, 31, 403
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 621,905,609,868,403, is 1.
Now, the common factors can be found like this.
621:3x 3x 3x 23
905:5x 181
609:3x 7x 29
868:2x 2x 7x 31
403:13x 31
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 31 = 651
Therefore, the value for common factors is 651.
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 = 119724282585180/(1x651)
LCM = 119724282585180/651
LCM = 183908268180
Thus, we can understand that the LCM of 621,905,609,868,403 is 183908268180.
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FAQs on LCM of 621, 905, 609, 868, 403
1. What is the LCM of 621, 905, 609, 868, 403?
Answer: LCM of 621, 905, 609, 868, 403 is 183908268180.
2. How to calculate the LCM of 621, 905, 609, 868, 403?
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 621, 905, 609, 868, 403.
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}.