|  The Repunit Primes Project | 
Articles
| Title | Author | 
| Primalty of Repunit - A small reduction of the exponent | Giovanni 
        Di Maria | 
| Primality of Repunit - An absurd hypothesis: The number of symbols | Giovanni 
        Di Maria | 
| Repunit R49081 is a Probable Prime | Harvey 
        Dubner | 
| Factoring Generalized Repunits | John 
        H. Jaroma |