Navigation Home News Status Ranges Primes Participants Links Impressum			Primes base : prev. 13 14 15 16 17 18 19 20 21 22 next Currently known Generalized Cullen prime numbers for base = 21: 67.100 * 21 67.100 + 1 is prime! [88.726 digits] 26 * 21 26 + 1 is prime! [36 digits] 8 * 21 8 + 1 is prime! [12 digits] 2 * 21 2 + 1 is prime! [3 digits]
			URL: http://www.primzahlenarchiv.de Last Modified 07.07.2006 questions and comments to Daniel Hermle