LCM of 644, 541, 690, 903
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 644, 541, 690, 903 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 644, 541, 690, 903. So, keep reading to learn more.
Given numbers are 644,541,690,903
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 644,541,690,903 is 224720580.
Find LCM of 644,541,690,903 with Prime Factorization
| 2 | 644, 541, 690, 903 |
| 3 | 322, 541, 345, 903 |
| 7 | 322, 541, 115, 301 |
| 23 | 46, 541, 115, 43 |
| 2, 541, 5, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 23 x 2 x 541 x 5 x 43 = 224720580
Therefore, the lowest common multiple of 644,541,690,903 is 224720580.
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.
644 x 541 x 690 x 903 = 217080080280
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.
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
541 : 1, 541
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
903 : 1, 3, 7, 21, 43, 129, 301, 903
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,541,690,903, is 1.
Now, the common factors can be found like this.
644:2x 2x 7x 23
541:541
690:2x 3x 5x 23
903:3x 7x 43
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 7x 23 = 966
Therefore, the value for common factors is 966.
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 = 217080080280/(1x966)
LCM = 217080080280/966
LCM = 224720580
Thus, we can understand that the LCM of 644,541,690,903 is 224720580.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 644, 541, 690, 903
1. What is the LCM of 644, 541, 690, 903?
Answer: LCM of 644, 541, 690, 903 is 224720580.
2. How to calculate the LCM of 644, 541, 690, 903?
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 644, 541, 690, 903.
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}.