how to find the perfect of a number ?

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https://www.cuemath.com/numbers/perfect-numbers

https://www.cuemath.com/numbers/perfect-numbers
What are Perfect Numbers? Definition, Examples, and Facts – Cuemath
In order to find a perfect number, we can use the technique told by Euclid. According to Euclid, there is an expression that can be a perfect number subject to a specific condition. According to his proposition, if 2 n -1 is a prime number, then 2 n-1 (2 n -1) is a perfect number. This condition can be understood using the following table.

https://byjus.com/maths/perfect-numbers

https://byjus.com/maths/perfect-numbers
Perfect Numbers in Maths- Definition, List, Formula, Examples and Questions
Solution: We know that every perfect number can be expressed as 2p – 1(2p – 1) where p is a prime number. Using the above formula let us find the perfect numbers from 1 to 500. For n = 2, 22 – 1(22 – 1) = 2 (4 -1) = 2 × 3 = 6. For n = 3, 23 – 1(23 – 1) = 22(8 – 1) = 4 × 7 = 28 For n = 5, 25 – 1(25 – 1) = 24(32 – 1) = 16 × 31 = 496

https://en.wikipedia.org / wiki / Perfect_number

https://en.wikipedia.org / wiki / Perfect_number
Perfect number – Wikipedia
In number theory, a perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For instance, 6 has divisors 1, 2 and 3 (excluding itself), and 1 + 2 + 3 = 6, so 6 is a perfect number.

https://www.splashlearn.com/math-vocabulary/perfect-numbers

https://www.splashlearn.com/math-vocabulary/perfect-numbers
What Are Perfect Numbers? Definition, List, Formula, Examples – SplashLearn
How to Find a Perfect Number Perfect Numbers From 1 to 100 Solved Examples on Perfect Numbers Practice Problems on Perfect Numbers Frequently Asked Questions on Perfect Numbers What Is a Perfect Number? Perfect numbers in math are the numbers (positive integers) that can be expressed as the sum of their factors (excluding the itself).

https://www.quantamagazine.org/the-mysterious-math-of-perfect-numbers-20210315

https://www.quantamagazine.org/the-mysterious-math-of-perfect-numbers-20210315
The Mysterious Math of Perfection | Quanta Magazine
Perfect numbers are equal to the sum of their proper divisors (positive integers that divide a number evenly, not counting itself). For example, 6 = 3 + 2 + 1, and 28 = 14 + 7 + 4 + 2 + 1.

https://testbook.com/maths/perfect-numbers

https://testbook.com/maths/perfect-numbers
Perfect Numbers: Definition, List from 1 to 100 & Solved Examples
7 juin 2023Overview Test Series We are going to learn the key concepts of what is a perfect number with definition, important formulas, perfect numbers list from 1 to 100 and Euclid’s perfect number theorem. We have also added a few solved examples for the perfect numbers that candidates will find beneficial in their exam preparation.

https://brilliant.org/wiki/perfect-numbers

https://brilliant.org/wiki/perfect-numbers
Perfect Numbers | Brilliant Math & Science Wiki
Perfect Numbers. A perfect number is a positive integer that equals the sum of its proper divisors, that is, positive divisors excluding the number itself. For example, 6 6 is a perfect number because the proper divisors of 6 6 are 1,2, 1,2, and 3, 3, and 6=1+2+3. 6 = 1+2+3. The sum of all positive divisors of a n n is denoted by sigma …

https://study.com/learn/lesson/perfect-number-definition-examples-what-is-a-perfect-number.html

https://study.com/learn/lesson/perfect-number-definition-examples-what-is-a-perfect-number.html
Perfect Number Definition & Examples – Study.com
21 nov. 2023To determine where a number is perfect, write down all of the possible divisors (excluding the number itself) and add them together. If the sum of the divisors is equal to the original…

https://mathworld.wolfram.com/PerfectNumber.html

https://mathworld.wolfram.com/PerfectNumber.html
Perfect Number — from Wolfram MathWorld
18 janv. 2024is a perfect number, as stated in Proposition IX.36 of Euclid’s Elements (Dickson 2005, p. 3; Dunham 1990).. While many of Euclid’s successors implicitly assumed that all perfect numbers were of the form (Dickson 2005, pp. 3-33), the precise statement that all even perfect numbers are of this form was first considered in a 1638 letter from Descartes to Mersenne (Dickson 2005, p. 12).

https://www.math.net/perfect-number

https://www.math.net/perfect-number
Perfect number – Math.net
6, as we confirmed above, is a perfect number. There are a total of 51 known perfect numbers, all of which are even. There are currently no known odd perfect numbers, and it is believed that none exist. However, this has yet to be proven. Below are the first 5 perfect numbers: 6, 28, 496, 8128, 33550336. The remaining quickly … lesoutrali bot