LCM of 704, 638, 695, 990
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 704, 638, 695, 990 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 704, 638, 695, 990. So, keep reading to learn more.
Given numbers are 704,638,695,990
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 704,638,695,990 is 127702080.
Find LCM of 704,638,695,990 with Prime Factorization
| 2 | 704, 638, 695, 990 |
| 5 | 352, 319, 695, 495 |
| 11 | 352, 319, 139, 99 |
| 32, 29, 139, 9 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 11 x 32 x 29 x 139 x 9 = 127702080
Therefore, the lowest common multiple of 704,638,695,990 is 127702080.
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.
704 x 638 x 695 x 990 = 309039033600
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.
704 : 1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704
638 : 1, 2, 11, 22, 29, 58, 319, 638
695 : 1, 5, 139, 695
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 704,638,695,990, is 1.
Now, the common factors can be found like this.
704:2x 2x 2x 2x 2x 2x 11
638:2x 11x 29
695:5x 139
990:2x 3x 3x 5x 11
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 5x 11x 11 = 2420
Therefore, the value for common factors is 2420.
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 = 309039033600/(1x2420)
LCM = 309039033600/2420
LCM = 127702080
Thus, we can understand that the LCM of 704,638,695,990 is 127702080.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 704, 638, 695, 990
1. What is the LCM of 704, 638, 695, 990?
Answer: LCM of 704, 638, 695, 990 is 127702080.
2. How to calculate the LCM of 704, 638, 695, 990?
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 704, 638, 695, 990.
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}.