LCM of 645, 381, 508, 190
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 645, 381, 508, 190 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 645, 381, 508, 190. So, keep reading to learn more.
Given numbers are 645,381,508,190
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 645,381,508,190 is 6225540.
Find LCM of 645,381,508,190 with Prime Factorization
| 2 | 645, 381, 508, 190 |
| 3 | 645, 381, 254, 95 |
| 5 | 215, 127, 254, 95 |
| 127 | 43, 127, 254, 19 |
| 43, 1, 2, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 127 x 43 x 1 x 2 x 19 = 6225540
Therefore, the lowest common multiple of 645,381,508,190 is 6225540.
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.
645 x 381 x 508 x 190 = 23719307400
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.
645 : 1, 3, 5, 15, 43, 129, 215, 645
381 : 1, 3, 127, 381
508 : 1, 2, 4, 127, 254, 508
190 : 1, 2, 5, 10, 19, 38, 95, 190
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,381,508,190, is 1.
Now, the common factors can be found like this.
645:3x 5x 43
381:3x 127
508:2x 2x 127
190:2x 5x 19
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 5x 127 = 3810
Therefore, the value for common factors is 3810.
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 = 23719307400/(1x3810)
LCM = 23719307400/3810
LCM = 6225540
Thus, we can understand that the LCM of 645,381,508,190 is 6225540.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 645, 381, 508, 190
1. What is the LCM of 645, 381, 508, 190?
Answer: LCM of 645, 381, 508, 190 is 6225540.
2. How to calculate the LCM of 645, 381, 508, 190?
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 645, 381, 508, 190.
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}.