Is there a name for numbers whose factors only consist of prime numbers but are not prime in themselves?

For example, 22 has factors of 2 and 11, both prime numbers, yet 22 itself is not prime.

5 points · 3 comments · view on lemmy.world

3 Comments

Semiprime

palebluethought@lemmy.world · 3 pts · 2y

This would be true if and only if the number has exactly 2 prime factors. Otherwise, if n = abc, then a*b (or any other choice of two) is also a factor, and is not prime.

PrincipleOfCharity@0v0.social · 2 pts · 2y

Semiprime numbers.