LCM of 781, 572, 909, 556
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 781, 572, 909, 556 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 781, 572, 909, 556. So, keep reading to learn more.
Given numbers are 781,572,909,556
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 781,572,909,556 is 5131366812.
Find LCM of 781,572,909,556 with Prime Factorization
| 2 | 781, 572, 909, 556 |
| 2 | 781, 286, 909, 278 |
| 11 | 781, 143, 909, 139 |
| 71, 13, 909, 139 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 11 x 71 x 13 x 909 x 139 = 5131366812
Therefore, the lowest common multiple of 781,572,909,556 is 5131366812.
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.
781 x 572 x 909 x 556 = 225780139728
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.
781 : 1, 11, 71, 781
572 : 1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572
909 : 1, 3, 9, 101, 303, 909
556 : 1, 2, 4, 139, 278, 556
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,572,909,556, is 1.
Now, the common factors can be found like this.
781:11x 71
572:2x 2x 11x 13
909:3x 3x 101
556:2x 2x 139
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 11 = 44
Therefore, the value for common factors is 44.
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 = 225780139728/(1x44)
LCM = 225780139728/44
LCM = 5131366812
Thus, we can understand that the LCM of 781,572,909,556 is 5131366812.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 781, 572, 909, 556
1. What is the LCM of 781, 572, 909, 556?
Answer: LCM of 781, 572, 909, 556 is 5131366812.
2. How to calculate the LCM of 781, 572, 909, 556?
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 781, 572, 909, 556.
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}.