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.


Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021