LCM of 649, 918, 289, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 649, 918, 289, 690 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 649, 918, 289, 690. So, keep reading to learn more.
Given numbers are 649,918,289,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 649,918,289,690 is 1164753810.
Find LCM of 649,918,289,690 with Prime Factorization
| 2 | 649, 918, 289, 690 |
| 3 | 649, 459, 289, 345 |
| 17 | 649, 153, 289, 115 |
| 649, 9, 17, 115 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 17 x 649 x 9 x 17 x 115 = 1164753810
Therefore, the lowest common multiple of 649,918,289,690 is 1164753810.
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.
649 x 918 x 289 x 690 = 118804888620
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.
649 : 1, 11, 59, 649
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
289 : 1, 17, 289
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 649,918,289,690, is 1.
Now, the common factors can be found like this.
649:11x 59
918:2x 3x 3x 3x 17
289:17x 17
690:2x 3x 5x 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 17 = 102
Therefore, the value for common factors is 102.
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 = 118804888620/(1x102)
LCM = 118804888620/102
LCM = 1164753810
Thus, we can understand that the LCM of 649,918,289,690 is 1164753810.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 649, 918, 289, 690
1. What is the LCM of 649, 918, 289, 690?
Answer: LCM of 649, 918, 289, 690 is 1164753810.
2. How to calculate the LCM of 649, 918, 289, 690?
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 649, 918, 289, 690.
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}.