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Advent calendar 2017
1 December
All 2017 advent puzzles
~
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Today's number is the smallest three digit number such that the sum of its digits is equal to the product of its digits.
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123
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numbers
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digits
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addition
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circles
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dates
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pentagons
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folding tube maps
people maths
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Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
sum to infinity
proportion
numbers
ellipses
graphs
binary
probability
geometric means
cryptic clues
area
cards
coins
multiplication
neighbours
pentagons
probabilty
3d shapes
powers
number
sport
rectangles
quadratics
trigonometry
cryptic crossnumbers
fractions
spheres
lists
people maths
the only crossnumber
taxicab geometry
folding tube maps
albgebra
matrices
means
chalkdust crossnumber
scales
crossnumbers
tiling
parabolas
integers
prime factors
perimeter
planes
digits
irreducible numbers
geometric mean
odd numbers
factorials
square numbers
gerrymandering
symmetry
addition
wordplay
percentages
christmas
clocks
determinants
angles
tangents
doubling
triangles
remainders
geometry
partitions
polygons
cube numbers
money
speed
chess
chocolate
indices
elections
balancing
digital products
star numbers
consecutive numbers
square grids
dodecagons
dice
consecutive integers
logic
range
volume
routes
median
circles
dates
digital clocks
coordinates
pascal's triangle
tournaments
cubics
calculus
functions
mean
complex numbers
medians
polynomials
menace
averages
integration
dominos
bases
quadrilaterals
differentiation
regular shapes
shape
advent
squares
ave
time
unit fractions
decahedra
sequences
combinatorics
lines
crosswords
factors
sets
2d shapes
axes
sums
hexagons
expansions
grids
division
perfect numbers
arrows
triangle numbers
square roots
books
products
algebra
prime numbers
rugby
games
shapes
multiplaction squares
even numbers
colouring
floors
surds
palindromes
multiples
xor
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