For example , the number 26 is semiprime and its only factors are 1 , 2 , 13 , and 26 , of which only 26 is composite .
Semiprime numbers have no composite numbers as factors other than themselves .
The number 26 is semiprime and its only factors are 1 , 2 , 13 , and 26 , of which only 26 is composite .
Semiprime numbers have no composite numbers as factors other than themselves .