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Advent calendar 2019
24 December
All 2019 advent puzzles
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There are six 3-digit numbers with the property that the sum of their digits is equal to the product of their digits. Today's number is the largest of these numbers.
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The digits of the number must be 1, 2 and 3, so the largest number is
321
.
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Most recent collections
Advent calendar 2024
Advent calendar 2023
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List of all puzzles
Tags
tournaments
speed
menace
money
2d shapes
remainders
shapes
functions
squares
median
chocolate
ave
gerrymandering
time
dodecagons
chess
factors
cryptic clues
perimeter
neighbours
rugby
the only crossnumber
scales
polygons
books
coordinates
proportion
bases
multiples
balancing
folding tube maps
multiplication
clocks
odd numbers
routes
prime numbers
arrows
sequences
quadrilaterals
dominos
expansions
fractions
cryptic crossnumbers
games
3d shapes
products
angles
means
surds
sport
powers
digital products
mean
tiling
digits
addition
unit fractions
cards
axes
numbers
sum to infinity
cubics
triangles
colouring
medians
volume
doubling
calculus
binary
people maths
digital clocks
probabilty
cube numbers
ellipses
palindromes
spheres
even numbers
crossnumbers
area
pascal's triangle
geometry
graphs
percentages
hexagons
advent
planes
indices
tangents
combinatorics
differentiation
square roots
crosswords
trigonometry
perfect numbers
floors
range
pentagons
taxicab geometry
triangle numbers
algebra
grids
integration
determinants
division
symmetry
matrices
decahedra
albgebra
consecutive integers
parabolas
star numbers
partitions
lines
irreducible numbers
complex numbers
sums
coins
circles
integers
regular shapes
number
geometric mean
elections
chalkdust crossnumber
numbers grids
factorials
square grids
wordplay
probability
square numbers
rectangles
quadratics
christmas
shape
consecutive numbers
dates
averages
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polynomials
sets
geometric means
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