It's Friday, so...

1. Senior Member
Join Date
Dec 1969
Posts
96,118

## It's Friday, so...

(Had to steal WK&#039;s subject line.)<BR><BR>So I&#039;m driving home last night and I got to pondering perfect numbers (google for the term if you don&#039;t know what it means).<BR><BR>And one thing led to another and I came upon this fun fact:<BR><BR>On my next birthday, the sum of all factors of my age (excluding my age, itself) is such that the largest factor of that sum is my current age.<BR><BR>Quiz: How old am I now?<BR><BR>Hint: I am not an infant.<BR><BR>

2. Senior Member
Join Date
Dec 1969
Posts
96,118

## Sigh!

Teach me to try to do arithmetic in my head!<BR><BR>Somehow, I got the sum of the factors off by 10!<BR><BR>Ignore this idiocy!<BR><BR>AH! But then I have a new one!<BR><BR>On my next birthday, I will be of an age such that:<BR>The ratio of the sum of all factors of my age (excluding my age, itself) to my age is the largest value for any age short of an age which is twice my age.<BR><BR>But I&#039;m a dork for not checking my addition before posting that other one. DOH.<BR><BR>

3. Senior Member
Join Date
Dec 1969
Posts
2,930

## let me break out the super computer

how about this one<BR><BR>How many people can read hex if only you and dead people can read hex?<BR><BR><BR>i need a hint. you mean prime factors, right?<BR><BR>prime factors<BR>66: 1,2,3,11 = 17:66 = 0.257575757575<BR>65: 1,5,13 = 19:65 = 0.292307...<BR>64: 1,2^6 = 13:64 = 0.203125<BR>and so on<BR><BR>so i&#039;m gonna say you&#039;re gonna be 65 on your next birthday since i know you&#039;re not 33 :-P don&#039;t ask my why i started at that range... i had a hunch

4. Senior Member
Join Date
Dec 1969
Posts
19,082

## set uus a language problem instead...

... math problems kill me after a beer or two however I&#039;m OK with crosswords<BR><BR>(did the Sunday Times* Crossword yesterday in about 40 minutes or so, but couldn&#039;t touch the adjacent math problem)<BR><BR>and yes, I am posting from the pub. James Squire Brewhouse actually :<BR><BR>http://www.sydneypubguide.net/content/pubs/james_squire_brewhouse.asp<BR><BR><BR>j<BR>http://rtfm.atrax.co.uk/<BR><BR><BR>* if you&#039;re wondering, the Weekend Australian runs the Sunday Times Crossword on Saturday, along with the saturday crossword. Only one paper all weekend, y&#039;see.

5. Senior Member
Join Date
Dec 1969
Posts
96,118

## Well, a hint:

The ratio is over 1. <BR><BR>And the ratio for 120, by the way, is exactly 2.0! I wonder if that&#039;s unique?<BR><BR>

6. Senior Member
Join Date
Dec 1969
Posts
96,118

## London or NY Times???

If NYTimes, which one? The punny one or the theme one?<BR><BR>If you did the NYTimes one with the "Chicken Little" theme in 40 minutes, I&#039;m impressed. I think my wife and I together took nearly an hour on that one. The punny one is simpler, maybe 25 to 30 for it.<BR><BR>

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