mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

23 December

Today's number is the area of the largest area rectangle with perimeter 46 and whose sides are all integer length.

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

mean area chalkdust crossnumber square grids averages sport dodecagons lines complex numbers 3d shapes symmetry squares determinants sets advent factorials matrices partitions wordplay factors folding tube maps doubling shape grids palindromes addition surds crosswords probability digital products unit fractions pentagons books circles integers median parabolas christmas hexagons cube numbers triangle numbers clocks chess triangles multiples prime numbers elections pascal's triangle tournaments square numbers dates binary products proportion ave medians geometry square roots taxicab geometry xor remainders graphs regular shapes indices cards percentages differentiation planes range powers neighbours arrows cryptic clues routes division scales crossnumbers cubics numbers menace lists functions colouring dice chocolate tangents calculus spheres the only crossnumber money decahedra time 2d shapes even numbers consecutive integers probabilty games coins multiplication number rugby prime factors polynomials floors axes polygons balancing geometric mean sums multiplaction squares digits algebra cryptic crossnumbers gerrymandering perimeter odd numbers digital clocks integration consecutive numbers trigonometry quadrilaterals perfect numbers bases combinatorics tiling quadratics coordinates sum to infinity logic shapes volume irreducible numbers people maths dominos fractions albgebra sequences star numbers rectangles speed ellipses angles expansions geometric means means

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026