LCM of 195, 315, 639, 378
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 195, 315, 639, 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 195, 315, 639, 378. So, keep reading to learn more.
Given numbers are 195,315,639,378
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 195,315,639,378 is 1744470.
Find LCM of 195,315,639,378 with Prime Factorization
| 3 | 195, 315, 639, 378 |
| 3 | 65, 105, 213, 126 |
| 5 | 65, 35, 71, 42 |
| 7 | 13, 7, 71, 42 |
| 13, 1, 71, 6 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 5 x 7 x 13 x 1 x 71 x 6 = 1744470
Therefore, the lowest common multiple of 195,315,639,378 is 1744470.
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.
195 x 315 x 639 x 378 = 14836717350
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.
195 : 1, 3, 5, 13, 15, 39, 65, 195
315 : 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
639 : 1, 3, 9, 71, 213, 639
378 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
3 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 195,315,639,378, is 3.
Now, the common factors can be found like this.
195:3x 5x 13
315:3x 3x 5x 7
639:3x 3x 71
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.
3x 3x 3x 3x 5x 7 = 2835
Therefore, the value for common factors is 2835.
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 = 14836717350/(3x2835)
LCM = 14836717350/8505
LCM = 1744470
Thus, we can understand that the LCM of 195,315,639,378 is 1744470.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 195, 315, 639, 378
1. What is the LCM of 195, 315, 639, 378?
Answer: LCM of 195, 315, 639, 378 is 1744470.
2. How to calculate the LCM of 195, 315, 639, 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 195, 315, 639, 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}.