default search action
"Odd perfect numbers have a prime factor exceeding 108."
Takeshi Goto, Yasuo Ohno (2008)
- Takeshi Goto, Yasuo Ohno:
Odd perfect numbers have a prime factor exceeding 108. Math. Comput. 77(263): 1859-1868 (2008)
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.