LCM of 457, 726, 781, 639
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 457, 726, 781, 639 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 457, 726, 781, 639. So, keep reading to learn more.
Given numbers are 457,726,781,639
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 457,726,781,639 is 70669566.
Find LCM of 457,726,781,639 with Prime Factorization
| 3 | 457, 726, 781, 639 |
| 11 | 457, 242, 781, 213 |
| 71 | 457, 22, 71, 213 |
| 457, 22, 1, 3 |
Multiply the prime numbers at the bottom and the left side.
3 x 11 x 71 x 457 x 22 x 1 x 3 = 70669566
Therefore, the lowest common multiple of 457,726,781,639 is 70669566.
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.
457 x 726 x 781 x 639 = 165578793138
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.
457 : 1, 457
726 : 1, 2, 3, 6, 11, 22, 33, 66, 121, 242, 363, 726
781 : 1, 11, 71, 781
639 : 1, 3, 9, 71, 213, 639
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 457,726,781,639, is 1.
Now, the common factors can be found like this.
457:457
726:2x 3x 11x 11
781:11x 71
639:3x 3x 71
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 11x 71 = 2343
Therefore, the value for common factors is 2343.
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 = 165578793138/(1x2343)
LCM = 165578793138/2343
LCM = 70669566
Thus, we can understand that the LCM of 457,726,781,639 is 70669566.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 457, 726, 781, 639
1. What is the LCM of 457, 726, 781, 639?
Answer: LCM of 457, 726, 781, 639 is 70669566.
2. How to calculate the LCM of 457, 726, 781, 639?
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 457, 726, 781, 639.
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}.