LCM of 831, 140, 303, 720
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 831, 140, 303, 720 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 831, 140, 303, 720. So, keep reading to learn more.
Given numbers are 831,140,303,720
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 831,140,303,720 is 141004080.
Find LCM of 831,140,303,720 with Prime Factorization
| 2 | 831, 140, 303, 720 |
| 2 | 831, 70, 303, 360 |
| 3 | 831, 35, 303, 180 |
| 5 | 277, 35, 101, 60 |
| 277, 7, 101, 12 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 277 x 7 x 101 x 12 = 141004080
Therefore, the lowest common multiple of 831,140,303,720 is 141004080.
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.
831 x 140 x 303 x 720 = 25380734400
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.
831 : 1, 3, 277, 831
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
303 : 1, 3, 101, 303
720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 831,140,303,720, is 1.
Now, the common factors can be found like this.
831:3x 277
140:2x 2x 5x 7
303:3x 101
720:2x 2x 2x 2x 3x 3x 5
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 5 = 180
Therefore, the value for common factors is 180.
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 = 25380734400/(1x180)
LCM = 25380734400/180
LCM = 141004080
Thus, we can understand that the LCM of 831,140,303,720 is 141004080.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 831, 140, 303, 720
1. What is the LCM of 831, 140, 303, 720?
Answer: LCM of 831, 140, 303, 720 is 141004080.
2. How to calculate the LCM of 831, 140, 303, 720?
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 831, 140, 303, 720.
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}.