LCM of 427, 308, 642, 938
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 427, 308, 642, 938 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 427, 308, 642, 938. So, keep reading to learn more.
Given numbers are 427,308,642,938
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 427,308,642,938 is 404073516.
Find LCM of 427,308,642,938 with Prime Factorization
| 2 | 427, 308, 642, 938 |
| 7 | 427, 154, 321, 469 |
| 61, 22, 321, 67 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 61 x 22 x 321 x 67 = 404073516
Therefore, the lowest common multiple of 427,308,642,938 is 404073516.
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.
427 x 308 x 642 x 938 = 79198409136
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.
427 : 1, 7, 61, 427
308 : 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308
642 : 1, 2, 3, 6, 107, 214, 321, 642
938 : 1, 2, 7, 14, 67, 134, 469, 938
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 427,308,642,938, is 1.
Now, the common factors can be found like this.
427:7x 61
308:2x 2x 7x 11
642:2x 3x 107
938:2x 7x 67
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 7x 7 = 196
Therefore, the value for common factors is 196.
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 = 79198409136/(1x196)
LCM = 79198409136/196
LCM = 404073516
Thus, we can understand that the LCM of 427,308,642,938 is 404073516.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 427, 308, 642, 938
1. What is the LCM of 427, 308, 642, 938?
Answer: LCM of 427, 308, 642, 938 is 404073516.
2. How to calculate the LCM of 427, 308, 642, 938?
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 427, 308, 642, 938.
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}.