Tài liệu tham khảo

WikiPedia: Số_Fermat http://www.britannica.com/EBchecked/topic/204678 http://www.google.com/groups?selm=1990Jun15.190100... http://www.primegrid.com/download/GFN-341112_52428... http://mathworld.wolfram.com/FermatNumber.html http://mathworld.wolfram.com/FermatPrime.html http://mathworld.wolfram.com/FermatPseudoprime.htm... http://mathworld.wolfram.com/GeneralizedFermatNumb... http://primes.utm.edu/glossary/page.php?sort=Ferma... http://pagesperso-orange.fr/yves.gallot/primes/ind... http://www.spd.dcu.ie/johnbcos/fermat6.htm