LCM of 498, 786, 781, 638, 390
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 498, 786, 781, 638, 390 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 498, 786, 781, 638, 390. So, keep reading to learn more.
Given numbers are 498,786,781,638,390
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 498,786,781,638,390 is 96042405030.
Find LCM of 498,786,781,638,390 with Prime Factorization
| 2 | 498, 786, 781, 638, 390 |
| 3 | 249, 393, 781, 319, 195 |
| 11 | 83, 131, 781, 319, 65 |
| 83, 131, 71, 29, 65 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 83 x 131 x 71 x 29 x 65 = 96042405030
Therefore, the lowest common multiple of 498,786,781,638,390 is 96042405030.
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.
498 x 786 x 781 x 638 x 390 = 76065584783760
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.
498 : 1, 2, 3, 6, 83, 166, 249, 498
786 : 1, 2, 3, 6, 131, 262, 393, 786
781 : 1, 11, 71, 781
638 : 1, 2, 11, 22, 29, 58, 319, 638
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 498,786,781,638,390, is 1.
Now, the common factors can be found like this.
498:2x 3x 83
786:2x 3x 131
781:11x 71
638:2x 11x 29
390:2x 3x 5x 13
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 2x 3x 3x 11 = 792
Therefore, the value for common factors is 792.
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 = 76065584783760/(1x792)
LCM = 76065584783760/792
LCM = 96042405030
Thus, we can understand that the LCM of 498,786,781,638,390 is 96042405030.
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FAQs on LCM of 498, 786, 781, 638, 390
1. What is the LCM of 498, 786, 781, 638, 390?
Answer: LCM of 498, 786, 781, 638, 390 is 96042405030.
2. How to calculate the LCM of 498, 786, 781, 638, 390?
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 498, 786, 781, 638, 390.
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}.