LCM of 328, 451, 636, 781
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 328, 451, 636, 781 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 328, 451, 636, 781. So, keep reading to learn more.
Given numbers are 328,451,636,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 328,451,636,781 is 40730712.
Find LCM of 328,451,636,781 with Prime Factorization
| 2 | 328, 451, 636, 781 |
| 2 | 164, 451, 318, 781 |
| 11 | 82, 451, 159, 781 |
| 41 | 82, 41, 159, 71 |
| 2, 1, 159, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 11 x 41 x 2 x 1 x 159 x 71 = 40730712
Therefore, the lowest common multiple of 328,451,636,781 is 40730712.
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.
328 x 451 x 636 x 781 = 73478204448
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.
328 : 1, 2, 4, 8, 41, 82, 164, 328
451 : 1, 11, 41, 451
636 : 1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 328,451,636,781, is 1.
Now, the common factors can be found like this.
328:2x 2x 2x 41
451:11x 41
636:2x 2x 3x 53
781:11x 71
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 11x 41 = 1804
Therefore, the value for common factors is 1804.
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 = 73478204448/(1x1804)
LCM = 73478204448/1804
LCM = 40730712
Thus, we can understand that the LCM of 328,451,636,781 is 40730712.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 328, 451, 636, 781
1. What is the LCM of 328, 451, 636, 781?
Answer: LCM of 328, 451, 636, 781 is 40730712.
2. How to calculate the LCM of 328, 451, 636, 781?
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 328, 451, 636, 781.
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}.