mscroggs.co.uk
mscroggs.co.uk

subscribe

Comment

Comments

Comments in green were written by me. Comments in blue were not written by me.
@Ryan: Got it! I like your method -- just keep eliminating square numbers until you're left with what you need.

I still wanted to figure out why my original method was wrong. And it finally dawned on me:
My mistake was not realizing that my answer of 241 was just a lower bound. The value of n needed to be AT LEAST 241, because my analysis said that 241 needed to be divided out. But any number >241 would also do the job of dividing out 241. So I needed to think about higher numbers too.
Seth Cohen
on /blog/107
×1   ×2   ×1   ×1   ×1   
@Seth Cohen: Even with those hints I just can't seem to get this one!
Steve
on /blog/107
×6   ×6   ×6   ×6   ×6   

Archive

Show me a random blog post
 2025 

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 
▼ show ▼
 2023 
▼ show ▼
 2022 
▼ show ▼
 2021 
▼ show ▼
 2020 
▼ show ▼
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

tmip pi approximation day arithmetic anscombe's quartet turtles noughts and crosses manchester science festival sobolev spaces dataset fonts finite group radio 4 numbers sport dates go captain scarlet harriss spiral stickers propositional calculus youtube squares pi graphs fractals crossnumbers mathsjam ternary martin gardner advent calendar data visualisation latex folding paper folding tube maps fence posts mathsteroids dragon curves tennis london underground standard deviation polynomials flexagons bots zines inverse matrices matrix multiplication rhombicuboctahedron countdown bubble bobble matrix of minors braiding frobel manchester big internet math-off friendly squares game of life python raspberry pi interpolation rugby video games hexapawn hannah fry reuleaux polygons craft puzzles christmas card london determinants light preconditioning matrix of cofactors european cup weather station inline code royal baby books php golden ratio signorini conditions sorting machine learning gaussian elimination edinburgh finite element method crochet error bars javascript accuracy electromagnetic field wool weak imposition pascal's triangle bempp geogebra talking maths in public convergence statistics pac-man datasaurus dozen final fantasy correlation crosswords geometry asteroids news logs triangles games guest posts mathslogicbot ucl runge's phenomenon christmas trigonometry probability menace kings gerry anderson oeis coins graph theory national lottery errors databet people maths royal institution gather town a gamut of games cross stitch estimation speed palindromes data logic crossnumber platonic solids bodmas 24 hour maths quadrilaterals curvature wave scattering exponential growth simultaneous equations chess computational complexity approximation recursion dinosaurs newcastle boundary element methods mean pizza cutting realhats nine men's morris map projections pythagoras live stream hats regular expressions logo misleading statistics game show probability chebyshev stirling numbers draughts programming numerical analysis golden spiral binary matrices sound phd the aperiodical chalkdust magazine matt parker football world cup hyperbolic surfaces plastic ratio cambridge reddit

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2025