Perfect cube Twenty-seven is a perfect cube, being 33 = 3 × 3 × 3. Share this: Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Share on Facebook (Opens in new window) Facebook Share on Tumblr (Opens in new window) Tumblr Share on Telegram (Opens in new window) Telegram Share on WhatsApp (Opens in new window) WhatsApp Related 0 Assorted 27