PrimeGrid awards each participant a badge for completing certain levels of work in each of our sub-projects. The easiest of the badges can often be obtained in less than a day by a single computer, whereas the most challenging badges will require far more time and computing power.

Each badge level is shown below. The PPS-LLR badges are shown as an example.

bronze 10K
silver 100K
gold 500K
amethyst 1M
ruby 2M
turquoise 5M
jade 10M
sapphire 20M
emerald 50M
double bronze 100M
double silver 200M
double gold 500M
double amethyst 1B
double ruby 2B
double turquoise 5B
double jade 10B
double sapphire 20B
double emerald 50B

You can discuss the new badges in the New badge proposal - discuss! thread.

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My lucky number is 75898⁵²⁴²⁸⁸+1

As requested, here a full list of all the project badges possible, shown as bronze.

321 LLR

Cullen LLR

ESP LLR (Extended Sierpinski Problem)

PPS LLR (Includes both PPS and PPSE -- Proth Prime Search [Extended])

PSP LLR (Prime Sierpinski Problem)

SoB LLR (Seventeen or Bust, aka The Sierpinski Problem)

SR5 LLR (Sierpinski/Riesel Base 5)

SGS LLR (Sophie Germain Search)

TPS LLR (Twin Prime Search) (retired)

TRP LLR (The Riesel Problem)

Woodall LLR

321 Sieve (suspended)

Generalized Cullen Woodall Sieve (suspended)

PPS Sieve

ESP/PSP/SoB Sieve (Previously called the PSP Sieve) (suspended)

TRP Sieve

AP27 (Arithmetic Progression of primes - 27)

Genefer, aka GFN -- Generalized Fermat Number prime search (including N=15 through N=22)

PSA (Project Staging Area): PRPNet and Manual Sieving

This list does not include the "one-off" badges that are awarded to the winners of the annual "Tour de Primes" competition.

Combine the last two posts together and you get this:




















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My lucky number is 75898⁵²⁴²⁸⁸+1