LCM of 747, 697, 921, 205
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 747, 697, 921, 205 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 747, 697, 921, 205. So, keep reading to learn more.
Given numbers are 747,697,921,205
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 747,697,921,205 is 799211565.
Find LCM of 747,697,921,205 with Prime Factorization
| 3 | 747, 697, 921, 205 |
| 41 | 249, 697, 307, 205 |
| 249, 17, 307, 5 |
Multiply the prime numbers at the bottom and the left side.
3 x 41 x 249 x 17 x 307 x 5 = 799211565
Therefore, the lowest common multiple of 747,697,921,205 is 799211565.
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.
747 x 697 x 921 x 205 = 98303022495
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.
747 : 1, 3, 9, 83, 249, 747
697 : 1, 17, 41, 697
921 : 1, 3, 307, 921
205 : 1, 5, 41, 205
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 747,697,921,205, is 1.
Now, the common factors can be found like this.
747:3x 3x 83
697:17x 41
921:3x 307
205:5x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 41 = 123
Therefore, the value for common factors is 123.
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 = 98303022495/(1x123)
LCM = 98303022495/123
LCM = 799211565
Thus, we can understand that the LCM of 747,697,921,205 is 799211565.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 747, 697, 921, 205
1. What is the LCM of 747, 697, 921, 205?
Answer: LCM of 747, 697, 921, 205 is 799211565.
2. How to calculate the LCM of 747, 697, 921, 205?
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 747, 697, 921, 205.
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}.