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