LCM of 670, 690, 991, 512
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 670, 690, 991, 512 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 670, 690, 991, 512. So, keep reading to learn more.
Given numbers are 670,690,991,512
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 670,690,991,512 is 11728366080.
Find LCM of 670,690,991,512 with Prime Factorization
| 2 | 670, 690, 991, 512 |
| 5 | 335, 345, 991, 256 |
| 67, 69, 991, 256 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 67 x 69 x 991 x 256 = 11728366080
Therefore, the lowest common multiple of 670,690,991,512 is 11728366080.
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.
670 x 690 x 991 x 512 = 234567321600
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.
670 : 1, 2, 5, 10, 67, 134, 335, 670
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
991 : 1, 991
512 : 1, 2, 4, 8, 16, 32, 64, 128, 256, 512
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 670,690,991,512, is 1.
Now, the common factors can be found like this.
670:2x 5x 67
690:2x 3x 5x 23
991:991
512:2x 2x 2x 2x 2x 2x 2x 2x 2
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 5 = 20
Therefore, the value for common factors is 20.
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 = 234567321600/(1x20)
LCM = 234567321600/20
LCM = 11728366080
Thus, we can understand that the LCM of 670,690,991,512 is 11728366080.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 670, 690, 991, 512
1. What is the LCM of 670, 690, 991, 512?
Answer: LCM of 670, 690, 991, 512 is 11728366080.
2. How to calculate the LCM of 670, 690, 991, 512?
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 670, 690, 991, 512.
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}.