24 December

Today's number is the largest possible remainder which can be obtained when dividing one of the answers in this advent calendar by another answer smaller than it (not including today's answer!).


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 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

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


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