Use "roundest" in a sentence

1. It's actually the roundest number except for zero...

2. Synonyms for Chubbiest include fleshiest, plumpest, podgiest, portliest, rotundest, roundest, tubbiest, buxomest, dumpiest and fattest

3. Synonyms for Bluntest include dullest, obtusest, roundest, most worn, most rounded, most pointless, most unkeen, flattest, stubbiest and thickest

4. Pass the Buckyball Before the 1980s, the only two structures of carbon known to man were graphite and diamond; then, in 1985, three scientists discovered the roundest and largest symmetrical molecular structure: the buckminsterfullerene