LCM of 781, 165, 872, 902
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 781, 165, 872, 902 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, 165, 872, 902. So, keep reading to learn more.
Given numbers are 781,165,872,902
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 781,165,872,902 is 418834680.
Find LCM of 781,165,872,902 with Prime Factorization
| 2 | 781, 165, 872, 902 |
| 11 | 781, 165, 436, 451 |
| 71, 15, 436, 41 |
Multiply the prime numbers at the bottom and the left side.
2 x 11 x 71 x 15 x 436 x 41 = 418834680
Therefore, the lowest common multiple of 781,165,872,902 is 418834680.
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 165 x 872 x 902 = 101357992560
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
165 : 1, 3, 5, 11, 15, 33, 55, 165
872 : 1, 2, 4, 8, 109, 218, 436, 872
902 : 1, 2, 11, 22, 41, 82, 451, 902
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 781,165,872,902, is 1.
Now, the common factors can be found like this.
781:11x 71
165:3x 5x 11
872:2x 2x 2x 109
902:2x 11x 41
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 = 101357992560/(1x242)
LCM = 101357992560/242
LCM = 418834680
Thus, we can understand that the LCM of 781,165,872,902 is 418834680.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 781, 165, 872, 902
1. What is the LCM of 781, 165, 872, 902?
Answer: LCM of 781, 165, 872, 902 is 418834680.
2. How to calculate the LCM of 781, 165, 872, 902?
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, 165, 872, 902.
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}.