LCM of 818, 781, 572, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 818, 781, 572, 561 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 818, 781, 572, 561. So, keep reading to learn more.
Given numbers are 818,781,572,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 818,781,572,561 is 847125708.
Find LCM of 818,781,572,561 with Prime Factorization
| 2 | 818, 781, 572, 561 |
| 11 | 409, 781, 286, 561 |
| 409, 71, 26, 51 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 409 x 71 x 26 x 51 = 847125708
Therefore, the lowest common multiple of 818,781,572,561 is 847125708.
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.
818 x 781 x 572 x 561 = 205004421336
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.
818 : 1, 2, 409, 818
781 : 1, 11, 71, 781
572 : 1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 818,781,572,561, is 1.
Now, the common factors can be found like this.
818:2x 409
781:11x 71
572:2x 2x 11x 13
561:3x 11x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 11x 11 = 242
Therefore, the value for common factors is 242.
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 = 205004421336/(1x242)
LCM = 205004421336/242
LCM = 847125708
Thus, we can understand that the LCM of 818,781,572,561 is 847125708.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 818, 781, 572, 561
1. What is the LCM of 818, 781, 572, 561?
Answer: LCM of 818, 781, 572, 561 is 847125708.
2. How to calculate the LCM of 818, 781, 572, 561?
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 818, 781, 572, 561.
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}.