Fermi Paradox (album)
Fermi Paradox is the 2002 (see 2002 in music) album by the band Tub Ring named after Enrico Fermi's Fermi Paradox.
Fermat number
If "N" = "F" > 3, then the above Jacobi symbol is always equal to −1 for "a" = 3, and this special case of Proth's theorem is known as Pépin's test. Although Pépin's test and Proth's theorem have been implemented on computers to prove the compositeness of some Fermat numbers, neither test gives a specific nontrivial factor. In fact, no specific prime factors are known for "n" = 20 and 24.