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Advent calendar 2015

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

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