LCM of 684, 524, 781, 655
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 684, 524, 781, 655 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 684, 524, 781, 655. So, keep reading to learn more.
Given numbers are 684,524,781,655
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 684,524,781,655 is 349903620.
Find LCM of 684,524,781,655 with Prime Factorization
| 2 | 684, 524, 781, 655 |
| 2 | 342, 262, 781, 655 |
| 131 | 171, 131, 781, 655 |
| 171, 1, 781, 5 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 131 x 171 x 1 x 781 x 5 = 349903620
Therefore, the lowest common multiple of 684,524,781,655 is 349903620.
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.
684 x 524 x 781 x 655 = 183349496880
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.
684 : 1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684
524 : 1, 2, 4, 131, 262, 524
781 : 1, 11, 71, 781
655 : 1, 5, 131, 655
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 684,524,781,655, is 1.
Now, the common factors can be found like this.
684:2x 2x 3x 3x 19
524:2x 2x 131
781:11x 71
655:5x 131
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 131 = 524
Therefore, the value for common factors is 524.
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 = 183349496880/(1x524)
LCM = 183349496880/524
LCM = 349903620
Thus, we can understand that the LCM of 684,524,781,655 is 349903620.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 684, 524, 781, 655
1. What is the LCM of 684, 524, 781, 655?
Answer: LCM of 684, 524, 781, 655 is 349903620.
2. How to calculate the LCM of 684, 524, 781, 655?
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 684, 524, 781, 655.
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}.