Charles Greathouse: > a summation of the primes up to 10^10 > 1.10463086777... Here are five partial sums up to 1.25*10^9 primes (<=28794583627): 0.25*10^9 1.1033540385172011 0.50*10^9 1.1048250449450470 0.75*10^9 1.1056413954631700 1.00*10^9 1.1062021315695429 1.25*10^9 1.1066269604122258