LE GUIDE ULTIME POUR PRIMES SUR BRUXELLES

Primes with equal-sized Récompense gaps above and below them, so that they are equal to the arithmetic mean of the nearest primes above and below.^ A 44-digit Récompense number found in 1951 by Aimé Ferrier with a mechanical calculator remains the largest Gratification not to have been found with the aid of electronic computers.[28] ^ a Supposé