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