LCM of 521, 633, 987, 999, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 521, 633, 987, 999, 645 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 521, 633, 987, 999, 645. So, keep reading to learn more.
Given numbers are 521,633,987,999,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 521,633,987,999,645 is 7768193315715.
Find LCM of 521,633,987,999,645 with Prime Factorization
| 3 | 521, 633, 987, 999, 645 |
| 521, 211, 329, 333, 215 |
Multiply the prime numbers at the bottom and the left side.
3 x 521 x 211 x 329 x 333 x 215 = 7768193315715
Therefore, the lowest common multiple of 521,633,987,999,645 is 7768193315715.
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.
521 x 633 x 987 x 999 x 645 = 209741219524305
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.
521 : 1, 521
633 : 1, 3, 211, 633
987 : 1, 3, 7, 21, 47, 141, 329, 987
999 : 1, 3, 9, 27, 37, 111, 333, 999
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 521,633,987,999,645, is 1.
Now, the common factors can be found like this.
521:521
633:3x 211
987:3x 7x 47
999:3x 3x 3x 37
645:3x 5x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 3x 3 = 27
Therefore, the value for common factors is 27.
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 = 209741219524305/(1x27)
LCM = 209741219524305/27
LCM = 7768193315715
Thus, we can understand that the LCM of 521,633,987,999,645 is 7768193315715.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 521, 633, 987, 999, 645
1. What is the LCM of 521, 633, 987, 999, 645?
Answer: LCM of 521, 633, 987, 999, 645 is 7768193315715.
2. How to calculate the LCM of 521, 633, 987, 999, 645?
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 521, 633, 987, 999, 645.
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}.