LCM of 221, 764, 494, 428
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 221, 764, 494, 428 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 221, 764, 494, 428. So, keep reading to learn more.
Given numbers are 221,764,494,428
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 221,764,494,428 is 343259852.
Find LCM of 221,764,494,428 with Prime Factorization
| 2 | 221, 764, 494, 428 |
| 2 | 221, 382, 247, 214 |
| 13 | 221, 191, 247, 107 |
| 17, 191, 19, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 13 x 17 x 191 x 19 x 107 = 343259852
Therefore, the lowest common multiple of 221,764,494,428 is 343259852.
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.
221 x 764 x 494 x 428 = 35699024608
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.
221 : 1, 13, 17, 221
764 : 1, 2, 4, 191, 382, 764
494 : 1, 2, 13, 19, 26, 38, 247, 494
428 : 1, 2, 4, 107, 214, 428
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 221,764,494,428, is 1.
Now, the common factors can be found like this.
221:13x 17
764:2x 2x 191
494:2x 13x 19
428:2x 2x 107
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 2x 13 = 104
Therefore, the value for common factors is 104.
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 = 35699024608/(1x104)
LCM = 35699024608/104
LCM = 343259852
Thus, we can understand that the LCM of 221,764,494,428 is 343259852.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 221, 764, 494, 428
1. What is the LCM of 221, 764, 494, 428?
Answer: LCM of 221, 764, 494, 428 is 343259852.
2. How to calculate the LCM of 221, 764, 494, 428?
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 221, 764, 494, 428.
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}.