sentences:  At the start of the project in August 2003, there were less than 509,203 for which no prime was known., 52 of these had been eliminated by Riesel Sieve or outside persons; the largest prime found by this project is 502,573 × 27,181,987 − 1 of 2,162,000 digits, and it is known that for none of the remaining there is a prime with "n" <= 10,000,000 (As of February 2020).The project proceeds in the same way as other prime-hunting projects like GIMPS or Seventeen or Bust