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A [[natural number]] is considered ''' ''k''-almost prime''' if it has exactly ''k'' prime factors. 1-almost prime numbers are [[prime numbers|primes]]. 2-almost prime numbers are [[semiprime]].
A [[natural number]] is considered ''' ''k''-almost prime''' if it has exactly ''k'' prime factors. 1-almost prime numbers are [[prime numbers|primes]]. 2-almost prime numbers are [[semiprime]].
==External Links==
==External links==
*[http://mathworld.wolfram.com/AlmostPrime.html Almost Prime] at MathWorld
*[http://mathworld.wolfram.com/AlmostPrime.html Almost Prime] at MathWorld
[[Category:Prime Numbers]]
[[Category:Number Theory]]