Title text:
Another group of mathematicians is working to put an upper bound on the number, although everyone keeps begging them to stop.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3137/
Title text:
Another group of mathematicians is working to put an upper bound on the number, although everyone keeps begging them to stop.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3137/
Sure there’s quite a lot of them to choose from, but for instance USPS tracking numbers are 22-digit numbers.