I'm a natural in math.

The variants of numbers to solve me don't go higher than 100 and 26.

What am I?

  • $\begingroup$ Is this a number sequence to be continued, or an unknown object ("I") to be described? $\endgroup$ – Rand al'Thor May 9 '15 at 11:52
  • $\begingroup$ An unknown object to be described. Thanks for throwing that in :) $\endgroup$ – User2910293 May 9 '15 at 11:53
  • $\begingroup$ I'm new to this so as a hint; rather think simple than complex. $\endgroup$ – User2910293 May 9 '15 at 11:57
  • $\begingroup$ I added the "riddle" tag since it's an unknown object to be described - hope you don't mind :-) Welcome to Puzzling SE btw! $\endgroup$ – Rand al'Thor May 9 '15 at 11:58
  • $\begingroup$ Taking numbers mod 26 and converting to letters gives AIWOK - any use? $\endgroup$ – Rand al'Thor May 9 '15 at 12:04

The solution is


The method for solving is:

First realise that all the numbers are prime.
Convert each prime to the index of the prime, e.g. $53 \to 16$ because $53$ is the 16th prime.
You get: $16\;18\;9\;13\;5$
Converting this using $a=1,b=2,\ldots,z=26$ you get the solution PRIME.

  • $\begingroup$ Brilliant! And excellent puzzle, @Allendar: very obscure at first sight, but with an answer that's obvious once you see it. +1 to you both. $\endgroup$ – Rand al'Thor May 9 '15 at 13:15
  • $\begingroup$ Awesome! :D I wasn't sure if my riddle wasn't complex or was serious enough for the level on this site. I hope it was ok :) $\endgroup$ – User2910293 May 9 '15 at 13:25

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.