I’ve used Daniel Bernstein’s Primegen implementation of Atkin’s sieve for the primes, as modified by James Waldby, to compute for intervals from k*10^9 to (k+1)*10^9, with 0<= k <= 999, (a) the number of prime numbers in the interval (b) For an interval I = [ k*10^9, (k+1)*10^9] the value of Product_{primes p element_of I}… Continue reading Data on primes to 10^12 by intervals of length 10^9, 1000 lines
Month: April 2015
Graph on large highly abundant numbers, cf. Keith Briggs, Abundant Numbers and the Riemann Hypothesis
cf. Briggs 2006, Figure 3 Bottom, for a comparison: