LCM of 660, 770, 787, 869, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 660, 770, 787, 869, 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 660, 770, 787, 869, 690. So, keep reading to learn more.
Given numbers are 660,770,787,869,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 660,770,787,869,690 is 6606502980.
Find LCM of 660,770,787,869,690 with Prime Factorization
| 2 | 660, 770, 787, 869, 690 |
| 3 | 330, 385, 787, 869, 345 |
| 5 | 110, 385, 787, 869, 115 |
| 11 | 22, 77, 787, 869, 23 |
| 2, 7, 787, 79, 23 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 11 x 2 x 7 x 787 x 79 x 23 = 6606502980
Therefore, the lowest common multiple of 660,770,787,869,690 is 6606502980.
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.
660 x 770 x 787 x 869 x 690 = 239816058174000
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.
660 : 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
787 : 1, 787
869 : 1, 11, 79, 869
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 660,770,787,869,690, is 1.
Now, the common factors can be found like this.
660:2x 2x 3x 5x 11
770:2x 5x 7x 11
787:787
869:11x 79
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 2x 3x 5x 5x 11x 11 = 36300
Therefore, the value for common factors is 36300.
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 = 239816058174000/(1x36300)
LCM = 239816058174000/36300
LCM = 6606502980
Thus, we can understand that the LCM of 660,770,787,869,690 is 6606502980.
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FAQs on LCM of 660, 770, 787, 869, 690
1. What is the LCM of 660, 770, 787, 869, 690?
Answer: LCM of 660, 770, 787, 869, 690 is 6606502980.
2. How to calculate the LCM of 660, 770, 787, 869, 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 660, 770, 787, 869, 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}.