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Numbers API - An API for interesting facts about numbers

numbersapi.com

21–30 of 32 posts

Re: Numbers API - An API for interesting facts about numbers

#21

http://numbersapi.com/1729/math "1729 is a plain old number." Can't recognize Hardy-Ramanujan number? Also the smallest perfect number: http://numbersapi.com/6/math "6 is the smallest number of distinct isosceles right triangles that will tile an isosceles right triangle."

See http://numbersapi.com/1729:

> 1729 is the smallest number representable in two different ways as a sum of two positive cubes, as Ramanujan stated on the spot.

Re: Numbers API - An API for interesting facts about numbers

#22

http://numbersapi.com/1729/math "1729 is a plain old number." Can't recognize Hardy-Ramanujan number? Also the smallest perfect number: http://numbersapi.com/6/math "6 is the smallest number of distinct isosceles right triangles that will tile an isosceles right triangle."

Ha, good catch. http://numbersapi.com/1729 (the trivia version) gives the Ramanujan fact, while we have multiple math facts for 6 (refresh a few times to get "smallest perfect number").

We're still working to build our database of facts. Feel free to send suggestions to numbersapi at google mail, and we may add a feature for user-submitted facts.

Re: Numbers API - An API for interesting facts about numbers

#24

We will finally be able to answer humanity's most pressing question: what is the smallest uninteresting positive integer?

Some will argue that such a number doesn't exist (http://en.wikipedia.org/wiki/Interesting_number_paradox). Others say it is 11630 (http://www.nathanieljohnston.com/2009/06/11630-is-the-first-...)

Re: Numbers API - An API for interesting facts about numbers

#27
post #8

We will finally be able to answer humanity's most pressing question: what is the smallest uninteresting positive integer?

223. EDIT: 219 is definitely smaller than 223.

223 is a US date-prime. 2 and 23 is prime, and so is 223.

That may be a stretch, but it qualifies as something interesting.

Re: Numbers API - An API for interesting facts about numbers

#28
post #23

You can get a lot of number facts using Wolfram|Alpha and its API http://www.wolframalpha.com/input/?i=1729

Wolfram Alpha is great for mathematical properties of numbers, while we have trivia facts and are looking to gather more (eg. from world records, numbers in nature, statistics, almanacs, news).

Re: Numbers API - An API for interesting facts about numbers

#29

http://numbersapi.com/1729/math "1729 is a plain old number." Can't recognize Hardy-Ramanujan number? Also the smallest perfect number: http://numbersapi.com/6/math "6 is the smallest number of distinct isosceles right triangles that will tile an isosceles right triangle."

It looks like they've fixed the one for 1729.
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