Giovanni's Diary > Chronological > Ephemeris > Entries >

2025-07-07 - Math riddle

I am happy that everything went great today. I didn't feel stressed or anxious, I was a bit confused on what to do at the beginning but the feeling went away and I already feel comfortable in the office.

I'll write some more thoughts in the following days, right now I am puzzled by a riddle written in the blackboard of the office, and It goes like this:

Gauss and Euler are playing a game, there are two secret numberrs \(p\) and \(s\) between \(2\) and \(99\). Gauss knows the value \(g = p*s\) and Euler knows the value \(e = p + s\). Then they say to eachother:

Gaus: I don't know p and s
Euler: I am not surprised
Gaus: Now I know
Euled: Now I know too

What are \(p\) and \(s\)?

I have been playing with numbers for a few hours but I can't figure this out!

Expenses so far, I marked the refundable things and I will count them in the total balance until I get the refunds:

 Expenses                           ||           
------------------------------------++-----------
 expenses:food                      ||    $31.82 
 expenses:food:non-essential        ||     $9.20 
 expenses:food:refundable           ||    $10.00 
 expenses:household:bathroom        ||     $7.86 
 expenses:household:kitchen         ||     $8.74 
 expenses:household:washing-machine ||     $7.49 
 expenses:legal:refundable          ||    $19.92 
 expenses:non-essential             ||     $4.45 
 expenses:rent                      ||   $656.00 
 expenses:rent:refundable           ||   $750.00 
 expenses:travel:arrival            ||    $39.47 
 expenses:travel:public-transport   ||    $60.50 
------------------------------------++-----------
                                    ||  $1605.45

Travel: Ephemeris, Index