LCM of 203, 665, 978, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 203, 665, 978, 990 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 203, 665, 978, 990. So, keep reading to learn more.
Given numbers are 203,665,978,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 203,665,978,990 is 622404090.
Find LCM of 203,665,978,990 with Prime Factorization
| 2 | 203, 665, 978, 990 |
| 3 | 203, 665, 489, 495 |
| 5 | 203, 665, 163, 165 |
| 7 | 203, 133, 163, 33 |
| 29, 19, 163, 33 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 29 x 19 x 163 x 33 = 622404090
Therefore, the lowest common multiple of 203,665,978,990 is 622404090.
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.
203 x 665 x 978 x 990 = 130704858900
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.
203 : 1, 7, 29, 203
665 : 1, 5, 7, 19, 35, 95, 133, 665
978 : 1, 2, 3, 6, 163, 326, 489, 978
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 203,665,978,990, is 1.
Now, the common factors can be found like this.
203:7x 29
665:5x 7x 19
978:2x 3x 163
990:2x 3x 3x 5x 11
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 5x 7 = 210
Therefore, the value for common factors is 210.
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 = 130704858900/(1x210)
LCM = 130704858900/210
LCM = 622404090
Thus, we can understand that the LCM of 203,665,978,990 is 622404090.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 203, 665, 978, 990
1. What is the LCM of 203, 665, 978, 990?
Answer: LCM of 203, 665, 978, 990 is 622404090.
2. How to calculate the LCM of 203, 665, 978, 990?
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 203, 665, 978, 990.
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}.