mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2016

8 December

Today's number is the second smallest number that can be written as a×b×c×d×e×f×g×h×i, where a,b,...,i are all integers greater than 1.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2025

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2026