LCM of 428, 338, 975, 655
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 428, 338, 975, 655 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 428, 338, 975, 655. So, keep reading to learn more.
Given numbers are 428,338,975,655
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 428,338,975,655 is 710661900.
Find LCM of 428,338,975,655 with Prime Factorization
| 2 | 428, 338, 975, 655 |
| 5 | 214, 169, 975, 655 |
| 13 | 214, 169, 195, 131 |
| 214, 13, 15, 131 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 13 x 214 x 13 x 15 x 131 = 710661900
Therefore, the lowest common multiple of 428,338,975,655 is 710661900.
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.
428 x 338 x 975 x 655 = 92386047000
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.
428 : 1, 2, 4, 107, 214, 428
338 : 1, 2, 13, 26, 169, 338
975 : 1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975
655 : 1, 5, 131, 655
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 428,338,975,655, is 1.
Now, the common factors can be found like this.
428:2x 2x 107
338:2x 13x 13
975:3x 5x 5x 13
655:5x 131
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 13 = 130
Therefore, the value for common factors is 130.
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 = 92386047000/(1x130)
LCM = 92386047000/130
LCM = 710661900
Thus, we can understand that the LCM of 428,338,975,655 is 710661900.
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FAQs on LCM of 428, 338, 975, 655
1. What is the LCM of 428, 338, 975, 655?
Answer: LCM of 428, 338, 975, 655 is 710661900.
2. How to calculate the LCM of 428, 338, 975, 655?
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 428, 338, 975, 655.
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}.