LCM of 723, 404, 672, 861
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 723, 404, 672, 861 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 723, 404, 672, 861. So, keep reading to learn more.
Given numbers are 723,404,672,861
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 723,404,672,861 is 670643232.
Find LCM of 723,404,672,861 with Prime Factorization
| 2 | 723, 404, 672, 861 |
| 2 | 723, 202, 336, 861 |
| 3 | 723, 101, 168, 861 |
| 7 | 241, 101, 56, 287 |
| 241, 101, 8, 41 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 241 x 101 x 8 x 41 = 670643232
Therefore, the lowest common multiple of 723,404,672,861 is 670643232.
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.
723 x 404 x 672 x 861 = 169002094464
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.
723 : 1, 3, 241, 723
404 : 1, 2, 4, 101, 202, 404
672 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
861 : 1, 3, 7, 21, 41, 123, 287, 861
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 723,404,672,861, is 1.
Now, the common factors can be found like this.
723:3x 241
404:2x 2x 101
672:2x 2x 2x 2x 2x 3x 7
861:3x 7x 41
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 3x 7 = 252
Therefore, the value for common factors is 252.
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 = 169002094464/(1x252)
LCM = 169002094464/252
LCM = 670643232
Thus, we can understand that the LCM of 723,404,672,861 is 670643232.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 723, 404, 672, 861
1. What is the LCM of 723, 404, 672, 861?
Answer: LCM of 723, 404, 672, 861 is 670643232.
2. How to calculate the LCM of 723, 404, 672, 861?
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 723, 404, 672, 861.
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}.