Doctor Who - 42 Clip - Happy Primes

A short scene from episode 7 of series 3 of Doctor Who.

Doctor Who is owned by BBC. I don't own anything for it. XD;;

Category:

Entertainment

Tags:

• doctor
• who
• david
• tennant

[joekuta]

all u gys r in high school ? what a group here

[omgfloofy]

What gives you that idea?

[blondie56789]

i cnt believe he can talk that fast!! lmao

[omgfloofy]

Actually- I can think of another sci-fi David that can speak just as fast (if not faster)- David Hewlett... aka Rodney McKay from Stargate Atlantis.

[holly4davidt]

it's scary that i know this off by heart

"any number that reduces to one when you take the sum of the square of it's digits and continue iterating until it yeilds 1 is a happy number. Any number that doesn't, isn't. A happy prime is a number that's both happy and prime, now TYPE IT IN. I dunno, talk about dumbing down. Don't they teach recreational mathematics any more?"

^all from memory. ^ It was a sad year of complete obsession last year

[HappyAppleCider]

I was so surprised when I heard that Happy Primes were real. I mean, DAMN. Imaginary numbers, happy numbers? Those math people must be really bored.

[spiralcosmetics]

I had to do this in Maths!!!!! Happy Numbers and Happy Prime numbers!

[slightlyinsaneFTW]

@holly4davidt It's still an obsession for me. It kinda freaks out my family, I can recite almost any episode of doctor who...

[Gallifrey1010]

my fav ep w Martha :-))

[24FramesforChrist]

This episode shook me up...and solidified the fact that David Tennant's one of my favorite actors.

[propertyofranger]

My maths tutor had no idea what the heck I was talking about when I asked him to explain happy primes to me :)

[Bluewarrior500]

I Like this episode but it's quite disturbing

[AnaisForTheWin]

@holly4davidt I wouldn't call it sad.

[technomusicgirl13]

@phantomsonlylove if it's not a happy number, it doesn't go down to one, and goes in a loop. these are called sad numbers. 4 is a sad number 7 is a happy number

[phantomsonlylove]

i tried this and either this information was inacurate or i did something wrong because it didnt reduce down to one.... :( i've failed the doctor

[mangoandozzy]

Always a favorite in episodes