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