LCM of 403, 689, 166, 747
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 403, 689, 166, 747 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 403, 689, 166, 747. So, keep reading to learn more.
Given numbers are 403,689,166,747
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 403,689,166,747 is 31910346.
Find LCM of 403,689,166,747 with Prime Factorization
| 13 | 403, 689, 166, 747 |
| 83 | 31, 53, 166, 747 |
| 31, 53, 2, 9 |
Multiply the prime numbers at the bottom and the left side.
13 x 83 x 31 x 53 x 2 x 9 = 31910346
Therefore, the lowest common multiple of 403,689,166,747 is 31910346.
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.
403 x 689 x 166 x 747 = 34431263334
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.
403 : 1, 13, 31, 403
689 : 1, 13, 53, 689
166 : 1, 2, 83, 166
747 : 1, 3, 9, 83, 249, 747
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 403,689,166,747, is 1.
Now, the common factors can be found like this.
403:13x 31
689:13x 53
166:2x 83
747:3x 3x 83
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
13x 83 = 1079
Therefore, the value for common factors is 1079.
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 = 34431263334/(1x1079)
LCM = 34431263334/1079
LCM = 31910346
Thus, we can understand that the LCM of 403,689,166,747 is 31910346.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 403, 689, 166, 747
1. What is the LCM of 403, 689, 166, 747?
Answer: LCM of 403, 689, 166, 747 is 31910346.
2. How to calculate the LCM of 403, 689, 166, 747?
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 403, 689, 166, 747.
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}.