10 December

This number is divisible by 2. One more than this number is divisible by 3. Two more than this number is divisible by 5. Three more than this number is divisible by 7. Four more than this number is divisible by 11. Five more than this number is divisible by 13.


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


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