Eusebius of Caesarea counted more than 250, Athanasius of Alexandria counted 318, and Eustathius of Antioch estimated "about 270" (all three were present at the council).
Eusebio de Cesarea contou 250, Atanasio de Alexandría contou 318, e Eustacio de Antioquía estimou arredor de 270 (os tres estiveron presentes no concilio).