LCM of 486, 690, 661, 621
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 486, 690, 661, 621 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 486, 690, 661, 621. So, keep reading to learn more.
Given numbers are 486,690,661,621
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 486,690,661,621 is 36943290.
Find LCM of 486,690,661,621 with Prime Factorization
| 2 | 486, 690, 661, 621 |
| 3 | 243, 345, 661, 621 |
| 3 | 81, 115, 661, 207 |
| 3 | 27, 115, 661, 69 |
| 23 | 9, 115, 661, 23 |
| 9, 5, 661, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 23 x 9 x 5 x 661 x 1 = 36943290
Therefore, the lowest common multiple of 486,690,661,621 is 36943290.
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.
486 x 690 x 661 x 621 = 137650698540
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.
486 : 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
661 : 1, 661
621 : 1, 3, 9, 23, 27, 69, 207, 621
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 486,690,661,621, is 1.
Now, the common factors can be found like this.
486:2x 3x 3x 3x 3x 3
690:2x 3x 5x 23
661:661
621:3x 3x 3x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 3x 23 = 3726
Therefore, the value for common factors is 3726.
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 = 137650698540/(1x3726)
LCM = 137650698540/3726
LCM = 36943290
Thus, we can understand that the LCM of 486,690,661,621 is 36943290.
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FAQs on LCM of 486, 690, 661, 621
1. What is the LCM of 486, 690, 661, 621?
Answer: LCM of 486, 690, 661, 621 is 36943290.
2. How to calculate the LCM of 486, 690, 661, 621?
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 486, 690, 661, 621.
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}.