Is the distribution of almost-primes known.

  • Thread starter tpm
  • Start date
  • #1
tpm
72
0

Main Question or Discussion Point

Is the distribution of "almost-primes" known.

If we define the "Almost-primes" as:

* [tex] p^{a} [/tex] a is positive integer and p is a prime

* pq where p and q are both primes

then my question is if their distribution known ?? i mean if there is a function f(x) so for f(N) gives the values of "almost prime numbers" from 1 to N
 

Answers and Replies

  • #2
matt grime
Science Advisor
Homework Helper
9,395
3
Yes. But yo don't want to ask that. You want to ask if there is a way to express this function in terms of easily computed objects/quantities, or if there is a closed expression in n. Can't help you there.
 

Related Threads on Is the distribution of almost-primes known.

Replies
2
Views
6K
  • Last Post
Replies
8
Views
3K
Replies
15
Views
3K
Replies
1
Views
4K
  • Last Post
Replies
1
Views
2K
  • Last Post
2
Replies
37
Views
8K
  • Last Post
Replies
6
Views
5K
Replies
20
Views
5K
  • Last Post
Replies
6
Views
6K
Top