LCM of 841, 638, 618, 378
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 841, 638, 618, 378 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 841, 638, 618, 378. So, keep reading to learn more.
Given numbers are 841,638,618,378
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 841,638,618,378 is 360178434.
Find LCM of 841,638,618,378 with Prime Factorization
| 2 | 841, 638, 618, 378 |
| 3 | 841, 319, 309, 189 |
| 29 | 841, 319, 103, 63 |
| 29, 11, 103, 63 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 29 x 29 x 11 x 103 x 63 = 360178434
Therefore, the lowest common multiple of 841,638,618,378 is 360178434.
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.
841 x 638 x 618 x 378 = 125342095032
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.
841 : 1, 29, 841
638 : 1, 2, 11, 22, 29, 58, 319, 638
618 : 1, 2, 3, 6, 103, 206, 309, 618
378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 841,638,618,378, is 1.
Now, the common factors can be found like this.
841:29x 29
638:2x 11x 29
618:2x 3x 103
378:2x 3x 3x 3x 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 3x 29 = 348
Therefore, the value for common factors is 348.
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 = 125342095032/(1x348)
LCM = 125342095032/348
LCM = 360178434
Thus, we can understand that the LCM of 841,638,618,378 is 360178434.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 841, 638, 618, 378
1. What is the LCM of 841, 638, 618, 378?
Answer: LCM of 841, 638, 618, 378 is 360178434.
2. How to calculate the LCM of 841, 638, 618, 378?
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 841, 638, 618, 378.
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}.