Using Hida theory, we can prove that there is a cusp form of weight 2 and level $\Gamma_0(11)$. Are there ways to prove that there is no cusp forms of weight 2 and level $\Gamma_0(p)$ where $p < 11$? **Edit.** As suggested by Jakob (*see comments*), calculating the dimension of $M_2 (\Gamma_0(p))$ is one way to prove the fact. But I am interested in proving it using congruences like Hida theory.