In mathematics, a semiprime (also called biprime or 2-almost prime, or pq number) is a natural number that is the product of two (not necessarily distinct) prime numbers. The first few semiprimes are 4, 6, 9, 10, 14, 15, 21, 22, 25, 26, ...
网络释义
1、半素数
...多数判定门 majority decision gate半素数 semiprime殆素数 almost prime integer ...