Number and sum of prime factors of a number

  • Context: Undergrad 
  • Thread starter Thread starter suchith
  • Start date Start date
  • Tags Tags
    Factors Prime Sum
Click For Summary
SUMMARY

The discussion centers on the existence of a formula to determine the number of prime factors and their sum for a large number N, specifically referencing the τ(N) and σ(N) functions. Participants agree that while there are methods to identify if a number is prime, no efficient formula exists for directly calculating the prime factors without factorization. The implications of such a formula could undermine internet security, as it would challenge the foundational principles of the RSA Algorithm, which relies on the difficulty of prime factorization.

PREREQUISITES
  • Understanding of prime factorization and its significance in number theory
  • Familiarity with the τ(N) and σ(N) functions
  • Knowledge of the RSA Algorithm and its reliance on prime numbers
  • Basic concepts of algorithm efficiency and computational complexity
NEXT STEPS
  • Research the properties and applications of the τ(N) and σ(N) functions in number theory
  • Explore the RSA Algorithm and its implications for internet security
  • Study existing algorithms for prime factorization and their efficiency
  • Investigate the search for formulas related to prime numbers and their distribution
USEFUL FOR

Mathematicians, cryptographers, computer scientists, and anyone interested in the complexities of prime factorization and its impact on security protocols.

suchith
Messages
7
Reaction score
0
Given a large number N, do we have any formula to find the number of prime factors and their sum like τ(N) and σ(N) functions?

CONDITION: One should not list the factors of N or is not allowed to factorize N since afterwards it would be just a matter of counting and addition
 
Mathematics news on Phys.org
If such a formula ## f(N) ## exists, what would ## f(N) = 1 ## mean?
 
I believe if such a formula does exist then the entire internet would be vulnerable. The internet is secure because of prime number factorisation. See RSA Algorithm

There is a formula to find if a number is prime or not, but not the factors.

png.gif
 
That actually looks like a "formula" to find the ## n ##th prime, but such "formulas" are really just symbolic descriptions of (very ineffecient) algorithms and of no practical importance.
 

Similar threads

  • · Replies 0 ·
Replies
0
Views
3K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 35 ·
2
Replies
35
Views
5K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
1K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 16 ·
Replies
16
Views
3K