LCM of 731, 655, 748, 238
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 731, 655, 748, 238 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 731, 655, 748, 238. So, keep reading to learn more.
Given numbers are 731,655,748,238
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 731,655,748,238 is 147471940.
Find LCM of 731,655,748,238 with Prime Factorization
| 2 | 731, 655, 748, 238 |
| 17 | 731, 655, 374, 119 |
| 43, 655, 22, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 17 x 43 x 655 x 22 x 7 = 147471940
Therefore, the lowest common multiple of 731,655,748,238 is 147471940.
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.
731 x 655 x 748 x 238 = 85238781320
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.
731 : 1, 17, 43, 731
655 : 1, 5, 131, 655
748 : 1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748
238 : 1, 2, 7, 14, 17, 34, 119, 238
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 731,655,748,238, is 1.
Now, the common factors can be found like this.
731:17x 43
655:5x 131
748:2x 2x 11x 17
238:2x 7x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 17x 17 = 578
Therefore, the value for common factors is 578.
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 = 85238781320/(1x578)
LCM = 85238781320/578
LCM = 147471940
Thus, we can understand that the LCM of 731,655,748,238 is 147471940.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 731, 655, 748, 238
1. What is the LCM of 731, 655, 748, 238?
Answer: LCM of 731, 655, 748, 238 is 147471940.
2. How to calculate the LCM of 731, 655, 748, 238?
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 731, 655, 748, 238.
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}.