PrimeGrid World Peace Day Challenge starts September 13th @ 11:00 UTC!


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The seventh challenge of the 2023 Series will be a 10-day challenge celebrating World Peace Day, also known as the International Day of Peace, an annual United Nations holiday observed on September 21st. The challenge will be offered on the SOB-LLR application, beginning 13 September 11:00 UTC and ending 23 September 11:00 UTC. To participate in the Challenge, please select only the Seventeen or Bust (LLR) project in your PrimeGrid preferences section. Thoughts? Theories? Tidbits? Truisms? Trivialities? Read more and join the discussion at

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