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Advent calendar 2016
8 December
All 2016 advent puzzles
~
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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.
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768
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
quadrilaterals
tiling
planes
logic
circles
palindromes
perimeter
sum to infinity
star numbers
cryptic clues
parabolas
dates
multiplication
bases
grids
surds
lines
elections
matrices
number
arrows
coins
fractions
menace
irreducible numbers
dodecagons
hexagons
algebra
2d shapes
differentiation
products
advent
triangles
floors
people maths
chalkdust crossnumber
chocolate
quadratics
functions
sport
volume
geometric means
doubling
addition
wordplay
books
coordinates
expansions
pascal's triangle
3d shapes
balancing
chess
cards
digital products
rugby
crossnumbers
averages
integers
shape
perfect numbers
determinants
square numbers
consecutive integers
tournaments
means
time
dice
probability
ave
clocks
prime numbers
polynomials
games
factors
consecutive numbers
regular shapes
axes
money
decahedra
range
routes
the only crossnumber
christmas
combinatorics
partitions
unit fractions
sets
indices
median
angles
factorials
remainders
gerrymandering
ellipses
crossnumber
sums
triangle numbers
geometric mean
digital clocks
integration
numbers
geometry
polygons
odd numbers
albgebra
pentagons
mean
spheres
even numbers
symmetry
rectangles
area
multiples
folding tube maps
scales
dominos
complex numbers
cryptic crossnumbers
binary
speed
percentages
probabilty
tangents
squares
division
sequences
crosswords
graphs
shapes
square roots
cubics
calculus
cube numbers
trigonometry
proportion
digits
taxicab geometry
colouring
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