It's basically an alias for 1. https://www.google.com/search?q=number+of+horns+on+a+unicorn+%2F+2 https://www.google.com/search?q=number+of+horns+on+a+unicorn.

It's basically an alias for 1. https://www.google.com/search?q=number+of+horns+on+a+unicorn+%2F+2 https://www.google.com/search?q=number+of+horns+on+a+unicorn... I know there are a ton more phrases that work as calculator aliases, but I can't think of any off the top of my head.