Yep exactly, and the Ceann Comhairle is in FF so to form a government FF and FG would need at minimum 2 more TDs, but may wish to get some more as a buffer to account for any internal issues that could arise over the next few years (a TD leaving the party and going independent).

Edit: Apologies meant to say they need 87. 174 -1 (CC) is 173, so 87 required for majority when CC is excluded.