LCM of 238, 420, 836, 428, 231
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 238, 420, 836, 428, 231 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 238, 420, 836, 428, 231. So, keep reading to learn more.
Given numbers are 238,420,836,428,231
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 238,420,836,428,231 is 159671820.
Find LCM of 238,420,836,428,231 with Prime Factorization
| 2 | 238, 420, 836, 428, 231 |
| 2 | 119, 210, 418, 214, 231 |
| 3 | 119, 105, 209, 107, 231 |
| 7 | 119, 35, 209, 107, 77 |
| 11 | 17, 5, 209, 107, 11 |
| 17, 5, 19, 107, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 11 x 17 x 5 x 19 x 107 x 1 = 159671820
Therefore, the lowest common multiple of 238,420,836,428,231 is 159671820.
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.
238 x 420 x 836 x 428 x 231 = 8262058654080
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.
238 : 1, 2, 7, 14, 17, 34, 119, 238
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
836 : 1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836
428 : 1, 2, 4, 107, 214, 428
231 : 1, 3, 7, 11, 21, 33, 77, 231
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 238,420,836,428,231, is 1.
Now, the common factors can be found like this.
238:2x 7x 17
420:2x 2x 3x 5x 7
836:2x 2x 11x 19
428:2x 2x 107
231:3x 7x 11
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 2x 2x 3x 7x 7x 11 = 51744
Therefore, the value for common factors is 51744.
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 = 8262058654080/(1x51744)
LCM = 8262058654080/51744
LCM = 159671820
Thus, we can understand that the LCM of 238,420,836,428,231 is 159671820.
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FAQs on LCM of 238, 420, 836, 428, 231
1. What is the LCM of 238, 420, 836, 428, 231?
Answer: LCM of 238, 420, 836, 428, 231 is 159671820.
2. How to calculate the LCM of 238, 420, 836, 428, 231?
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 238, 420, 836, 428, 231.
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}.