LCM of 235, 844, 398, 420
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 235, 844, 398, 420 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 235, 844, 398, 420. So, keep reading to learn more.
Given numbers are 235,844,398,420
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 235,844,398,420 is 828862860.
Find LCM of 235,844,398,420 with Prime Factorization
| 2 | 235, 844, 398, 420 |
| 2 | 235, 422, 199, 210 |
| 5 | 235, 211, 199, 105 |
| 47, 211, 199, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 47 x 211 x 199 x 21 = 828862860
Therefore, the lowest common multiple of 235,844,398,420 is 828862860.
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.
235 x 844 x 398 x 420 = 33154514400
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.
235 : 1, 5, 47, 235
844 : 1, 2, 4, 211, 422, 844
398 : 1, 2, 199, 398
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
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 235,844,398,420, is 1.
Now, the common factors can be found like this.
235:5x 47
844:2x 2x 211
398:2x 199
420:2x 2x 3x 5x 7
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 5 = 40
Therefore, the value for common factors is 40.
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 = 33154514400/(1x40)
LCM = 33154514400/40
LCM = 828862860
Thus, we can understand that the LCM of 235,844,398,420 is 828862860.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 235, 844, 398, 420
1. What is the LCM of 235, 844, 398, 420?
Answer: LCM of 235, 844, 398, 420 is 828862860.
2. How to calculate the LCM of 235, 844, 398, 420?
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 235, 844, 398, 420.
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}.