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# 12121 Search

The **12121 Search** is a Distributed computing project, which searches for primes of the form: 121 × 2^{n}-1, it also searches for primes of 121 × 2^{n}+1 after being a partner of PrimeGrid.

The 12121 site features a brilliant reservation system, which makes it easy to use PRPclient to reserve a testing number directly from the website.

Then this application will use LLR or PFGW to test this testing number and afterwards submit the result back via the website.

## Results

The 12121 Search has currently 7 primes in the The Prime Pages, their largest number is 121 × 2^{2033941}-1 which weighs in at 612280 digits. This prime was found on 2006-01-28.