Re:How I Store My 1's and 0′s (2012)
by excalibur on Monday March 20, 2017 @11:19AM
(#13914903)
It's hard to ignore improper apostrophe usage when it's featured this prominently.
[ Parent
| on HN ]
It's widely accepted to use an apostrophe s to form the plural of single digit numbers. See, for example, https://en.oxforddictionaries.com/punctuation/apostrophe
(This comes up a lot in math for variable names too)