Almost prime
This is an old revision of this page, as edited by Aschlafly (talk | contribs) at 13:42, July 30, 2009. It may differ significantly from current revision.
A natural number is considered k-almost prime if it has exactly k prime factors. 1-almost prime numbers are primes. 2-almost prime numbers are semiprime.
External Links
- Almost Prime at MathWorld