LCM of 261, 361, 380, 351
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 261, 361, 380, 351 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 261, 361, 380, 351. So, keep reading to learn more.
Given numbers are 261,361,380,351
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 261,361,380,351 is 73492380.
Find LCM of 261,361,380,351 with Prime Factorization
| 3 | 261, 361, 380, 351 |
| 3 | 87, 361, 380, 117 |
| 19 | 29, 361, 380, 39 |
| 29, 19, 20, 39 |
Multiply the prime numbers at the bottom and the left side.
3 x 3 x 19 x 29 x 19 x 20 x 39 = 73492380
Therefore, the lowest common multiple of 261,361,380,351 is 73492380.
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.
261 x 361 x 380 x 351 = 12567196980
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.
261 : 1, 3, 9, 29, 87, 261
361 : 1, 19, 361
380 : 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
351 : 1, 3, 9, 13, 27, 39, 117, 351
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 261,361,380,351, is 1.
Now, the common factors can be found like this.
261:3x 3x 29
361:19x 19
380:2x 2x 5x 19
351:3x 3x 3x 13
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 19 = 171
Therefore, the value for common factors is 171.
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 = 12567196980/(1x171)
LCM = 12567196980/171
LCM = 73492380
Thus, we can understand that the LCM of 261,361,380,351 is 73492380.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 261, 361, 380, 351
1. What is the LCM of 261, 361, 380, 351?
Answer: LCM of 261, 361, 380, 351 is 73492380.
2. How to calculate the LCM of 261, 361, 380, 351?
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 261, 361, 380, 351.
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}.