LCM of 342, 361, 646, 394
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 342, 361, 646, 394 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 342, 361, 646, 394. So, keep reading to learn more.
Given numbers are 342,361,646,394
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 342,361,646,394 is 21761802.
Find LCM of 342,361,646,394 with Prime Factorization
| 2 | 342, 361, 646, 394 |
| 19 | 171, 361, 323, 197 |
| 9, 19, 17, 197 |
Multiply the prime numbers at the bottom and the left side.
2 x 19 x 9 x 19 x 17 x 197 = 21761802
Therefore, the lowest common multiple of 342,361,646,394 is 21761802.
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.
342 x 361 x 646 x 394 = 31424042088
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.
342 : 1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
361 : 1, 19, 361
646 : 1, 2, 17, 19, 34, 38, 323, 646
394 : 1, 2, 197, 394
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 342,361,646,394, is 1.
Now, the common factors can be found like this.
342:2x 3x 3x 19
361:19x 19
646:2x 17x 19
394:2x 197
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 19x 19 = 1444
Therefore, the value for common factors is 1444.
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 = 31424042088/(1x1444)
LCM = 31424042088/1444
LCM = 21761802
Thus, we can understand that the LCM of 342,361,646,394 is 21761802.
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FAQs on LCM of 342, 361, 646, 394
1. What is the LCM of 342, 361, 646, 394?
Answer: LCM of 342, 361, 646, 394 is 21761802.
2. How to calculate the LCM of 342, 361, 646, 394?
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 342, 361, 646, 394.
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}.