LCM of 378, 199, 540, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 378, 199, 540, 645 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 378, 199, 540, 645. So, keep reading to learn more.
Given numbers are 378,199,540,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 378,199,540,645 is 32345460.
Find LCM of 378,199,540,645 with Prime Factorization
| 2 | 378, 199, 540, 645 |
| 3 | 189, 199, 270, 645 |
| 3 | 63, 199, 90, 215 |
| 3 | 21, 199, 30, 215 |
| 5 | 7, 199, 10, 215 |
| 7, 199, 2, 43 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 5 x 7 x 199 x 2 x 43 = 32345460
Therefore, the lowest common multiple of 378,199,540,645 is 32345460.
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.
378 x 199 x 540 x 645 = 26199822600
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.
378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
199 : 1, 199
540 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 378,199,540,645, is 1.
Now, the common factors can be found like this.
378:2x 3x 3x 3x 7
199:199
540:2x 2x 3x 3x 3x 5
645:3x 5x 43
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 3x 5 = 810
Therefore, the value for common factors is 810.
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 = 26199822600/(1x810)
LCM = 26199822600/810
LCM = 32345460
Thus, we can understand that the LCM of 378,199,540,645 is 32345460.
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FAQs on LCM of 378, 199, 540, 645
1. What is the LCM of 378, 199, 540, 645?
Answer: LCM of 378, 199, 540, 645 is 32345460.
2. How to calculate the LCM of 378, 199, 540, 645?
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 378, 199, 540, 645.
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}.