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