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Season 2012
We use 153 as an example of a narcissistic number. Video features Dr Ria Symonds from the University of Nottingham.
We use 153 as an example of a narcissistic number. Video features Dr Ria Symonds from the University of Nottingham.
31 is one of the special Mersenne Prime numbers. They are related to perfect numbers.
31 is one of the special Mersenne Prime numbers. They are related to perfect numbers.
3435 is Matt Parker's "ex" favourite number - but they are still on good terms.
3435 is Matt Parker's "ex" favourite number - but they are still on good terms.
Why is "f" a number to people who work with computers?
Why is "f" a number to people who work with computers?
Square roots, strange patterns and a mysterious constant - what are Matt's "grafting numbers" all about? And why is computer programming like skydiving?
Square roots, strange patterns and a mysterious constant - what are Matt's "grafting numbers" all about? And why is computer programming like skydiving?
17 is the minimum number of clues required to give a unique sudoku solution - but how did mathematicians prove this?
17 is the minimum number of clues required to give a unique sudoku solution - but how did mathematicians prove this?
The square root of two is a fascinating number with a long and sordid history. It also forms the basis of most office paper, such as A4, A3, etc.
The square root of two is a fascinating number with a long and sordid history. It also forms the basis of most office paper, such as A4, A3, etc.
The fraction three quarters has a particular interest to biologists because of its link to the research of Max Kleiber and metabolic rates in animals.
The fraction three quarters has a particular interest to biologists because of its link to the research of Max Kleiber and metabolic rates in animals.
Is 1 a prime number? Apparently not. Dr James Grime explains.
Is 1 a prime number? Apparently not. Dr James Grime explains.
The NFC's streak of 14 Super Bowl coin toss wins has come to an end... And they aren't likely to do it again for another 32,766 years.
Dr James Grime attempts to calculate how many years - on average - the NFC will wait to win another 14 in a row.
The NFC's streak of 14 Super Bowl coin toss wins has come to an end... And they aren't likely to do it again for another 32,766 years.
Dr James Grime attempts to calculate how many years - on average - the NFC will wait to win another 14 in a row.
7 is an example of a happy number, as opposed to sad numbers. What makes a number happy?
Dr Ria Symonds is from the University of Nottingham.
7 is an example of a happy number, as opposed to sad numbers. What makes a number happy?
Dr Ria Symonds is from the University of Nottingham.
What's the probability that two people on the football/soccer pitch share a birthday? That's only 23 people (22 players and the ref, as long as there have been no red cards or
.. show full overview
What's the probability that two people on the football/soccer pitch share a birthday? That's only 23 people (22 players and the ref, as long as there have been no red cards or injuries!!!) and there are 365 days in a normal year.
Dr James Grime explains. Our thanks to Nottingham Forest Football Club.
We're talking pretty big numbers here... And an interesting idea about what it'd be like traveling in a Googolplex-sized Universe!
With Antonio (Tony) Padilla and Ria Symonds from the University of Nottingham.
We're talking pretty big numbers here... And an interesting idea about what it'd be like traveling in a Googolplex-sized Universe!
With Antonio (Tony) Padilla and Ria Symonds from the University of Nottingham.
Magic squares are pretty interesting for Numberphiles any day of the week - but Roger shows us one with extra special "powers".
Professor Roger Bowley works at the University of Nottingham.
Magic squares are pretty interesting for Numberphiles any day of the week - but Roger shows us one with extra special "powers".
Professor Roger Bowley works at the University of Nottingham.
Matt talks us through "Happification" and resulting structures it creates. Includes his fascinating Melancoil!?
Matt talks us through "Happification" and resulting structures it creates. Includes his fascinating Melancoil!?
The number 1729 is "famous" among mathematicians. Why?
Featuring Dr James Grime and Professor Roger Bowley.
1729 is known as the Hardy--Ramanujan number or "Taxi Cab Number".
The number 1729 is "famous" among mathematicians. Why?
Featuring Dr James Grime and Professor Roger Bowley.
1729 is known as the Hardy--Ramanujan number or "Taxi Cab Number".
Astronomer Dr Meghan Gray on leap years and Julian dates.
Meghan is making a "guest appearance" on Numberphile and is more familiar to viewers of our sister channels DeepSkyVideos and Sixty Symbols.
Astronomer Dr Meghan Gray on leap years and Julian dates.
Meghan is making a "guest appearance" on Numberphile and is more familiar to viewers of our sister channels DeepSkyVideos and Sixty Symbols.
Why does Alex Clark, from the University of Leicester, have a strange fascination with 163?
Some slightly more advanced stuff in this video, including the Ramanujan Constant and its use in a "famous" April Fool's joke.
Why does Alex Clark, from the University of Leicester, have a strange fascination with 163?
Some slightly more advanced stuff in this video, including the Ramanujan Constant and its use in a "famous" April Fool's joke.
There has been some internet buzz about 998001, so Numberphile sheds some light on matters.
This video features Dr James Grime and we mention the YouTube channel Vsauce.
There has been some internet buzz about 998001, so Numberphile sheds some light on matters.
This video features Dr James Grime and we mention the YouTube channel Vsauce.
Douglas Adams - who would have turned 60 on March 11 - immortalised the number 42 in The Hitchhikers Guide to the Galaxy.
Forty-two was calculated by Deep Thought!
In this video is James Grime, Phil Moriarty and Gerardo Adesso.
Douglas Adams - who would have turned 60 on March 11 - immortalised the number 42 in The Hitchhikers Guide to the Galaxy.
Forty-two was calculated by Deep Thought!
In this video is James Grime, Phil Moriarty and Gerardo Adesso.
Some stuff about Pi, the "celebrity number'. This video features maths-loving author Alex Bellos (http://alexbellos.com/) and Professor Roger Bowley from the University of Nottingham.
Some stuff about Pi, the "celebrity number'. This video features maths-loving author Alex Bellos (http://alexbellos.com/) and Professor Roger Bowley from the University of Nottingham.
Professor Ed Copeland on a strange occurrence of Pi involving bouncing balls.
Professor Ed Copeland on a strange occurrence of Pi involving bouncing balls.
Dr Tony Padilla's unique (and low budget) twist on the Buffon's Needle experiment to learn the true value of Pi.
Dr Tony Padilla's unique (and low budget) twist on the Buffon's Needle experiment to learn the true value of Pi.
Professor Philip Moriarty attributes some sounds to Pi in a discussion about its randomness and the Feynman Point.
Professor Philip Moriarty attributes some sounds to Pi in a discussion about its randomness and the Feynman Point.
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