LCM of 681, 670, 721, 936
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 681, 670, 721, 936 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 681, 670, 721, 936. So, keep reading to learn more.
Given numbers are 681,670,721,936
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 681,670,721,936 is 51319424520.
Find LCM of 681,670,721,936 with Prime Factorization
| 2 | 681, 670, 721, 936 |
| 3 | 681, 335, 721, 468 |
| 227, 335, 721, 156 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 227 x 335 x 721 x 156 = 51319424520
Therefore, the lowest common multiple of 681,670,721,936 is 51319424520.
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.
681 x 670 x 721 x 936 = 307916547120
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.
681 : 1, 3, 227, 681
670 : 1, 2, 5, 10, 67, 134, 335, 670
721 : 1, 7, 103, 721
936 : 1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 681,670,721,936, is 1.
Now, the common factors can be found like this.
681:3x 227
670:2x 5x 67
721:7x 103
936:2x 2x 2x 3x 3x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3 = 6
Therefore, the value for common factors is 6.
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 = 307916547120/(1x6)
LCM = 307916547120/6
LCM = 51319424520
Thus, we can understand that the LCM of 681,670,721,936 is 51319424520.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 681, 670, 721, 936
1. What is the LCM of 681, 670, 721, 936?
Answer: LCM of 681, 670, 721, 936 is 51319424520.
2. How to calculate the LCM of 681, 670, 721, 936?
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 681, 670, 721, 936.
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}.