LCM of 835, 690, 120, 788
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 835, 690, 120, 788 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 835, 690, 120, 788. So, keep reading to learn more.
Given numbers are 835,690,120,788
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 835,690,120,788 is 90801240.
Find LCM of 835,690,120,788 with Prime Factorization
| 2 | 835, 690, 120, 788 |
| 2 | 835, 345, 60, 394 |
| 3 | 835, 345, 30, 197 |
| 5 | 835, 115, 10, 197 |
| 167, 23, 2, 197 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 167 x 23 x 2 x 197 = 90801240
Therefore, the lowest common multiple of 835,690,120,788 is 90801240.
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.
835 x 690 x 120 x 788 = 54480744000
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.
835 : 1, 5, 167, 835
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
120 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
788 : 1, 2, 4, 197, 394, 788
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 835,690,120,788, is 1.
Now, the common factors can be found like this.
835:5x 167
690:2x 3x 5x 23
120:2x 2x 2x 3x 5
788:2x 2x 197
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 2x 3x 5x 5 = 600
Therefore, the value for common factors is 600.
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 = 54480744000/(1x600)
LCM = 54480744000/600
LCM = 90801240
Thus, we can understand that the LCM of 835,690,120,788 is 90801240.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 835, 690, 120, 788
1. What is the LCM of 835, 690, 120, 788?
Answer: LCM of 835, 690, 120, 788 is 90801240.
2. How to calculate the LCM of 835, 690, 120, 788?
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 835, 690, 120, 788.
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}.