What is the rank (minimal number of group generators) of SL(n,F)$SL(n,\mathbb{F})$ in the situation when SL(n,F)$SL(n,\mathbb{F})$ is not perfect (when SL(n,F)i.e. when $SL(n,\mathbb{F})$ is different from SL(2,2)$SL(2,\mathbb{F}_2)$ and SL(2,3)$SL(2,\mathbb{F}_3)$)? If the general formula is not known, are there n$n$ and F$F$ which make rank(SL(n,F))>k$rank(SL(n,\mathbb{F}))>k$ for a fixed k $k$ (or at least for k=2$k=2$).?