LCM of 621, 681, 759, 693
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 621, 681, 759, 693 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, 681, 759, 693. So, keep reading to learn more.
Given numbers are 621,681,759,693
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 621,681,759,693 is 10854459.
Find LCM of 621,681,759,693 with Prime Factorization
| 3 | 621, 681, 759, 693 |
| 3 | 207, 227, 253, 231 |
| 11 | 69, 227, 253, 77 |
| 23 | 69, 227, 23, 7 |
| 3, 227, 1, 7 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 11 x 23 x 3 x 227 x 1 x 7 = 10854459
Therefore, the lowest common multiple of 621,681,759,693 is 10854459.
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 681 x 759 x 693 = 222440428287
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
681 : 1, 3, 227, 681
759 : 1, 3, 11, 23, 33, 69, 253, 759
693 : 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 621,681,759,693, is 3.
Now, the common factors can be found like this.
621:3x 3x 3x 23
681:3x 227
759:3x 11x 23
693:3x 3x 7x 11
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 3x 11x 23 = 6831
Therefore, the value for common factors is 6831.
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 = 222440428287/(3x6831)
LCM = 222440428287/20493
LCM = 10854459
Thus, we can understand that the LCM of 621,681,759,693 is 10854459.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 621, 681, 759, 693
1. What is the LCM of 621, 681, 759, 693?
Answer: LCM of 621, 681, 759, 693 is 10854459.
2. How to calculate the LCM of 621, 681, 759, 693?
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, 681, 759, 693.
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}.