1 such farm on 1 acre of land (the size of a football field) and 44 stories high can produce enough food to feed 613 000 people (10 different vegetables per person daily).
The on going problem with this silly idea is that unless you make your 44 story building extremely narrow, and
capable of rotating to continuously face the sun, only the plant life near the building's windows will grow. And only on the side facing the direct sunlight.
The plants of the top floor would however grow quite well.
Of course you could grow mushrooms in the vast majority of the building's interior, they don't require direct sun light.
I like mushrooms.
And these are things that were doable decades ago.
Really they weren't. Certainly not on the scale you're suggesting.