LCM of 831, 549, 638, 427
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 831, 549, 638, 427 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 831, 549, 638, 427. So, keep reading to learn more.
Given numbers are 831,549,638,427
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 831,549,638,427 is 679158018.
Find LCM of 831,549,638,427 with Prime Factorization
| 3 | 831, 549, 638, 427 |
| 61 | 277, 183, 638, 427 |
| 277, 3, 638, 7 |
Multiply the prime numbers at the bottom and the left side.
3 x 61 x 277 x 3 x 638 x 7 = 679158018
Therefore, the lowest common multiple of 831,549,638,427 is 679158018.
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.
831 x 549 x 638 x 427 = 124285917294
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.
831 : 1, 3, 277, 831
549 : 1, 3, 9, 61, 183, 549
638 : 1, 2, 11, 22, 29, 58, 319, 638
427 : 1, 7, 61, 427
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 831,549,638,427, is 1.
Now, the common factors can be found like this.
831:3x 277
549:3x 3x 61
638:2x 11x 29
427:7x 61
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 61 = 183
Therefore, the value for common factors is 183.
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 = 124285917294/(1x183)
LCM = 124285917294/183
LCM = 679158018
Thus, we can understand that the LCM of 831,549,638,427 is 679158018.
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FAQs on LCM of 831, 549, 638, 427
1. What is the LCM of 831, 549, 638, 427?
Answer: LCM of 831, 549, 638, 427 is 679158018.
2. How to calculate the LCM of 831, 549, 638, 427?
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 831, 549, 638, 427.
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}.