https://www.wikiworld.com/index.php?action=history&feed=atom&title=JokeOfTheDay.2005-11-16JokeOfTheDay.2005-11-16 - Revision history2026-05-06T14:54:01ZRevision history for this page on the wikiMediaWiki 1.45.1https://www.wikiworld.com/index.php?title=JokeOfTheDay.2005-11-16&diff=1817&oldid=previmported>Import: Imported current content2026-01-28T11:54:25Z<p>Imported current content</p>
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How to prove that all odd numbers are prime ?%%%<br />
<br />
Well, this problem has different solutions whether you are a:%%%<br />
''''Mathematician:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, and by induction we have that all the odd integers re prime.%%%<br />
''''Physicist:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is an experimental error...%%%<br />
''''Engineer:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is prime...%%%<br />
''''Chemist:''''%%%<br />
3 is prime, 5 is prime... hey, let's publish====%%%<br />
====<br />
''''Modern physicist using renormalization:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is ... 9/3 is prime, 11 is prime, 13 is prime, 15 is ... 15/3 is prime, 17 is prime, 19 is prime, 21 is ... 21/3 is prime...%%%<br />
''''Quantum Physicist:''''%%%<br />
All numbers are equally prime and non-prime until observed.%%%<br />
''''Professor:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, and the rest are left as an exercise for the student.%%%<br />
''''Confused Undergraduate:''''%%%<br />
Let p be any prime number larger than 2. Then p is not divisible by 2, so p is odd. QED%%%<br />
''''Measure nontheorist:''''%%%<br />
There are exactly as many odd numbers as primes (Euclid, Cantor), and exactly one even prime (namely 2), so there must be exactly one odd nonprime (namely 1).%%%<br />
''''Cosmologist:''''%%%<br />
3 is prime, yes it is true....%%%<br />
''''Computer Scientist:''''%%%<br />
10 is prime, 11 is prime, 101 is prime...%%%<br />
''''Programmer:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 will be fixed in the next release, ...%%%<br />
''''C programmer:''''%%%<br />
03 is prime, 05 is prime, 07 is prime, 09 is really 011 which everyone knows is prime, ...%%%<br />
''''BASIC programmer:''''%%%<br />
What's a prime?%%%<br />
''''COBOL programmer:''''%%%<br />
What's an odd number?%%%<br />
''''Windows programmer:''''%%%<br />
3 is prime. Wait...%%%<br />
''''Mac programmer:''''%%%<br />
Now why would anyone want to know about that? That's not user friendly. You don't worry about it, we'll take care of it for you.%%%<br />
''''Bill Gates:''''%%%<br />
1. No one will ever need any more than 3.%%%<br />
''''ZX-81 Computer Programmer:''''%%%<br />
3 is prime, Out of Memory.%%%<br />
''''Pentium owner:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 8.9999978 is prime...%%%<br />
''''GNU programmer:''''%%%<br />
% prime%%%<br />
usage: prime [[ x -extract --get [ --atime-preserve ]] [[ -b, --block-size N ]] [[ -B, --read-full-blocks ]] [[ -C, --directory DIR ]] [[--checkpoint ]] [[ -f, --file [HOSTNAME:]]F ] [[ --force-local ]] [[ -F, --info-script F --new-volume-script F ]] [[-G, --incremental ]] [[ -g, --listed-incremental F ]] [[ -h, --dereference ]] [[ -i, --ignore-zeros ]] [[ --ignore-failed-read ]] [[ -k, --keep-old-files ]] [[ -K, --starting-file F ]] [[ -l, --one-file-system ]] [[ -L, --tape-length N ]] [[ -m, --modification-time ]] [[ -M, --multi-volume ]] [[ -N, --after-date DATE, --newer DATE ]] [[ -o, --old-archive, --portability ]] [[ -O, --to-stdout ]] [[ -p, --same-permissions, --preserve-permissions ]] [[ -P, --absolute-paths ]] [[ --preserve ]] [[ -R, --record-number ]] [[ [-f script-file]] [[--expression<code>script]] [[--file</code>script-file]] [[file...|-nV]] [[--quiet]] [[--silent]] [[--version]] [[-e script]] --catenate --concatenate || c --create || d --diff --compare || r --append || t --list || u --update |]<br />
prime: you must specify exactly one of the r, c, t, x, or d options<br />
For more information, type "prime --help''%%%<br />
''''Unix programmer:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, ...%%%<br />
Segmentation fault, Core dumped.%%%<br />
''''Computer programmer:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is prime, 9 is prime, 9 is prime, 9 is ...%%%<br />
Oops, let's try that again:%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is ... 3 is prime, 5 is prime, 7 is prime, 9 is ... 3 is ...%%%<br />
Um, right. Okay, how about this:%%%<br />
3 is not prime, 5 is not prime, 7 is not prime, 9 is not prime...%%%<br />
So much for the beta releases. Ship this:%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is a feature, 11 is prime...%%%<br />
and put on the cover "More prime numbers than anyone else in the industry ===="%%%<br />
====<br />
Coming soon:%%%<br />
3 is a prime, 4 is a feature, 5 is a prime, 6 is a feature, 7 is a prime, 8 is not yet implemented, 9 is our backwards compatibility module, ...%%%<br />
''''Computational linguist:''''%%%<br />
3 is an odd prime, 5 is an odd prime, 7 is an odd prime, 9 is a very odd prime, ...%%%<br />
''''Software tech support operator:''''%%%<br />
Well, we haven't had any reports of composite odd numbers... do you have the latest version of ZFC?%%%<br />
''''Minesweeper addict:''''%%%<br />
1 is green, 2 is blue, 3 is orange, 4 is red...%%%<br />
''''Logician:''''%%%<br />
Hypothesis: All odd numbers are prime%%%<br />
Proof: If a proof exists, then the hypothesis must be true. The proof exists; you're reading it now.%%%<br />
From 1 and 2 follows that all odd numbers are prime%%%<br />
''''Linguist:''''%<br />
3 is prime, 5 is prime, 7 is prime, 9 aaah. I can make 9 a prime.%%%<br />
''''Philosopher:''''%%%<br />
Why don't we just call all the odd numbers prime and call all the prime numbers odd, that way all the odd numbers would be prime%%%<br />
''''Philosopher (2):''''%%%<br />
3 is prime. Hum, that's an interesting statement, I'll get one of my research students to look into that.%%%<br />
''''Economist:''''%%%<br />
Assume 9 is prime...%%%<br />
''''Economist (2):''''%%%<br />
2 is a prime, 4 is a prime.%%%<br />
''''Economist (3):''''%%%<br />
2 is even, 4 is even, 6 is even...%%%<br />
''''Economist (4):''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is not prime. Look, the prime rate is dropping.%%%<br />
''''Statistician:''''%%%<br />
100% of the sample 5, 13, 37, 41 and 53 is prime, so all odd numbers must be prime.%%%<br />
''''Mechanical Statistician:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is an outlier, 11 is prime, 13 is prime...%%%<br />
''''English major:''''%%%<br />
What's a prime number ?%%%<br />
''''Politician:''''%%%<br />
What's a number ?%%%<br />
''''Philosophy major:''''%%%<br />
What is ?%%%<br />
''''Athletic scholarship:''''%%%<br />
What ====?%%%<br />
====<br />
''''Mid-level manager:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is... Who can I delegate this to ?%%%<br />
''''Lawyer:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, although there appears to be prima facie evidence that 9 is not prime, there exists substantial precedent to indicate that nine should be considered prime. The following brief presents the case for nine's primeness ...%%%<br />
''''Lawyer(2):''''%%%<br />
It depends on what the meaning of is is.%%%<br />
''''Salesman:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, and with 9 you get five excellent primes for the price of three ====%%%<br />
====<br />
''''Anthropologist:''''%%%<br />
Prime or not, every number is unique. Take 9 for example...%%%<br />
''''Liberal:''''%%%<br />
The fact that nine is not prime indicates a deprived cultural environment which can only be remedied by a federally funded cultural enrichment program.%%%<br />
''''Nixon:''''%%%<br />
Put nine on the enemies list. I'm gonna get that number.%%%<br />
''''New Yorker:''''%%%<br />
3 is prime, 5 is prime, 7 is prime, 9 is ... NONE OF YOUR DAMN BUSINESS====%%%<br />
====<br />
''''New Jersey:''''%%%<br />
What do I look like to youse? Google?%%%<br />
''''rec.humor poster:''''%%%<br />
3 is prime, 3 is prime, 3 is prime, 3 is prime%%%<br />
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