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# Talk:Riesel prime 2 903

## Original tester of `n`~=10k range

Does anyone know who originally tested the `n` range around 10k, and when? Currently, Jean Penné is listed as the discoverer of `n`=10227 on the CRUS Liskovets-Gallot page, but given that `n` ranges much higher than that were tested on this `k` many years prior to the start of that effort, I'd like to find the proper original credit if we can. -happy5214 10:40, 2 April 2022 (UTC)

- All 300 <
`k`< 1000 were done by the Primesearch project in those days. An old entry from 2007-11-30 of my pages shows the range done to`n`=260000 and the first 24 primes found. So this value should be known before the CRUS-project. Karbon (talk) 09:25, 3 April 2022 (UTC)