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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 2025
Advent calendar 2024
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List of all puzzles
Tags
parabolas
money
means
volume
squares
palindromes
quadrilaterals
products
dominos
expansions
differentiation
geometric mean
taxicab geometry
regular shapes
tiling
christmas
digital products
cryptic clues
consecutive integers
grids
pascal's triangle
dates
doubling
scales
triangle numbers
multiplaction squares
spheres
area
balancing
neighbours
addition
complex numbers
books
wordplay
factorials
combinatorics
binary
lists
multiples
determinants
chocolate
median
shapes
unit fractions
fractions
coins
hexagons
sum to infinity
factors
functions
xor
number
perimeter
cryptic crossnumbers
rectangles
angles
symmetry
tangents
surds
quadratics
folding tube maps
chalkdust crossnumber
cubics
square numbers
gerrymandering
arrows
shape
dice
integers
cards
graphs
sums
calculus
medians
ave
probabilty
floors
time
advent
irreducible numbers
tournaments
pentagons
triangles
proportion
digits
routes
albgebra
ellipses
speed
menace
axes
perfect numbers
square grids
clocks
mean
matrices
prime numbers
elections
decahedra
trigonometry
indices
algebra
rugby
sequences
lines
sport
colouring
planes
division
the only crossnumber
integration
remainders
digital clocks
dodecagons
crossnumbers
people maths
averages
powers
2d shapes
geometry
polygons
circles
probability
even numbers
geometric means
square roots
cube numbers
chess
percentages
star numbers
crosswords
range
games
coordinates
polynomials
consecutive numbers
partitions
sets
numbers
prime factors
multiplication
odd numbers
3d shapes
bases
logic
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